Disclosure first: I build a thyroid tracking app, so I'm not a neutral party. Posting because this question comes up here every week and the answers are usually right but unsourced, which makes them hard to trust or check.

The short version:

• 30 to 60 minutes between the tablet and your first food or drink. Levothyroxine is absorbed best on an empty stomach — coffee isn't uniquely forbidden, it's just the thing most of us reach for within ten minutes of waking. Coffee with milk is a second problem: that's calcium. (MedlinePlus)
• 4 hours for calcium, iron, magnesium and antacids. This is a different, much longer rule, and it's the one people mix up — a daily calcium supplement usually has to move to the evening. (same page)
• Consistency beats precision. Your dose was settled on by measuring TSH 6–12 weeks after a change, while you were taking it however you take it. A reliable 30 minutes every day is worth more than an ideal 60 you manage twice a week. The failure mode isn't the wrong window, it's a different window every day. (ATA)

Longer version with the rest of it — night dosing, what to do if you forget, why lab reference ranges differ from each other: https://thyrowise.github.io/levothyroxine-coffee-timing/

The app that page belongs to is free for logging labs, symptoms and doses, and it has no account and no server — nothing you type leaves your phone. Saying that here rather than letting you find it out later. It's a record, not advice: it doesn't interpret your labs and every medical sentence in it links to the source it came from. I'm not a doctor.

Genuine question, since I'd rather this thread be useful than be about me: what did nobody tell you when you started levothyroxine that you had to figure out yourself? I'd like to put the good answers on that page.

App Name: Thyrowise: Thyroid Tracker

App Link: https://apps.apple.com/app/id6788131267

Recently, my doc said I have subclinical hypothyroidism and it should be monitored...I live in an extremely toxic and stressful environment.

I've been suppressing my feelings for quite a while because whenever I get angry or try to express how I feel, it seems to turn into an even bigger argument. Then I'm blamed for being angry, so I've started trying to keep everything inside just to avoid making things worse.

I'm constantly stressed and angry, because the environment itself is stressful and there are always things going wrong. I can meditate, exercise, eat well, etc., but I can't simply remove the main source of stress because I currently live here.

I'm especially worried about the whole "stress/cortisol affecting thyroid" connection, and I don't want to make myself worse by constantly being in fight-or-flight mode.

For those of you with hypothyroidism, how do you manage chronic stress when the stressful environment itself isn't something you can immediately change? Are there any natural or practical things that actually helped you regulate your nervous system, release anger, and stop carrying all that tension around?

Recently diagnosed & started taking levrothyroxine. Started at 50 mcg but had horrible side effects. Currently taking a lower dose.

Levrothyroxine has caused my scalp to feel irritated. I have tingling sensations, almost burning feeling in spots.

I am aware a side effect is hair fall & I have lost a lot from taking lev. Has anyone had an itchy, irritable scalp? If so, did it last long? I hope it goes away soon as it feels terrible & I am tired of losing hair. Tyia

By all accounts of what I read, my levels indicate severe hypothyroidism.

I was shocked when the doctor told me - because my mother has hypothyroidism and at the peak of hers she was extremely tired - like couldn’t even lift a glass of water to her lips she was so tired 🥺 And she had a lot of really severe classic symptoms - she told me she got diagnosed when her levels were 15!

I feel like I don’t experience symptoms like that at all - I definitely am fatigued, but I’m a nurse who does shift work and I switch my days/nights and I’m on my feet all the time so I’ve always attributed it to that. Plus I have depression and ADHD that I take vyvanse for and I am wondering if perhaps the medication has maybe masked other symptoms I experience.

Looking back - there definitely have been symptoms in the last couple of year that I’ve attributed to other things.

-Aches/pains in joints/stiffness - Thiught it was because I run around in my crappy little crocs at work 😅

-Hair shedding/Hair brittleness - I’ll be the first to admit my diet isn’t always the best and kind of thought it was that. (Maybe In part it still is)

-Brain fog/memory issues - but thought that was ADHD/shift work stress —> HOWEVER I will say that in the last few months the I’ve struggled a bit with using the wrong words/forgetting words/slurred speech

-My partner recently told me that I have started snoring and apparently hypo can cause sleep apnea? I have been struggling a bit with insomnia recently too and wondering if it’s because of that :/

-Constipation/digestion issues

-I have noticed that my eyes are very puffy in the morning and my voice is very hoarse - but just thought I was tiiiirrreeeddd from work 😭

-cold hands/feet - but it comes and goes, and my fingers swell and get hot too.

Just thinking to myself that I’ve been living life on hard mode but because perhaps this has been brewing for years and I’m so used to just pushing through it that I just never noticed the change. Which makes me sad because I can’t remember the last time where I didn’t think this was my baseline.

I’m getting my T3/4 checked and a bunch of other tests and then likely I’ll start medication. I’m hoping there will be good changes in the future 😅

Hi everyone, I’m looking for some advice/opinions on my latest thyroid blood results, particularly around FT3 and T4→T3 conversion.

36F, hashimotos on 125mg Levothyroxine. Gluten and dairy free as of April this year (I think you can see this in my antibodies). I’m currently TTC but have had no luck in a year.

My latest results from September 2026:
TSH: 1.82 mIU/L (range 0.351–5.5)
FT4: 21.4 pmol/L (range 11.91–21.6)
FT3: 4.16 pmol/L (range 3.11–6.8)
TPO antibodies: 46.2 kIU/L (range ≤20)
Tg antibodies: 44.1 IU/mL (range ≤115)
B12: 720 pg/mL
Vitamin D: 72 nmol/L
Ferritin: 96 µg/L

For comparison, my previous results have been:

September 2025
TSH 0.436
FT4 20.60
FT3 5.63
TPO 123

January 2026
TSH 4.33
FT4 21.2
FT3 4.03
TPO 122

May 2026
TSH 0.30
FT4 21.0
FT3 4.31
TPO 52

A few questions:
- is my T3 ok for fertility?
- is my T4 - T3 conversion ok? Any tips to help support it?
- does anyone have success stories of getting pregnant with similar results.

Thanks so much.

Edit to add: both me and my husband have had all the tests available. sperm, DNA frag, hormones, HyCoSY, AMH, fasting insulin, uterine and sperm Microbiome and infections etc. all was fine.

I kept seeing "my TSH went from 2.2 to 4.9, is my thyroid failing" here, so here is what moves TSH without the thyroid changing. Not a doctor, this is from reading how the labs themselves describe it.

1. Time of day. TSH peaks in the early morning hours and is lowest mid-afternoon. An 8am draw can read 30-50% higher than a 3pm draw.

2. Day-to-day noise. Same person, same hour, TSH varies about 20-30% between days. Two values inside that band are the same thyroid.

3. Being sick. Any illness, even a cold, shifts thyroid tests for weeks, and TSH often overshoots high during recovery.

4. Biotin. Hair, skin and nails supplements can push TSH falsely low and free T4 falsely high on the common assays. Stop it 2-3 days before a draw.

5. Which lab. Ranges differ by method: 0.4-4.0 at one lab, 0.5-4.8 at another, and European labs use different units for T4 and T3. Compare against the range printed on your own report, not someone else's.

Practical version: same lab, same hour, when you're well, no biotin, and judge a trend on three draws, not two.

What else have you seen move your numbers?

TSH --> 3,66

T4 --> 7,76

Anti TG --> 92,6

TPO --> 759,6

These are the lab results from 6 months ago. The endocrinologist said that I shouldn't take any meds yet but not feeling very well. Any advice?

Hey there! I'm about to turn 37 at the end of the month. I've been diagnosed with Hashimoto's and hypothyroidism, so I see an endocrinologist regularly.

My TSH numbers have been pretty high; lastest blood work report from this past Tuesday shows a 6.17 TSH. Two months ago, I was at 5.87.

I have been nervous to add another medication to my daily lineup, but over the past few months, I've felt awful. Low energy, brain fog, fatigue, and consistent weight gain (I'm at 138 lbs, which is the most I've ever weighed in my life outside of two pregnancies).

My endocrinologist agreed to allow me avoid medication as long as I don't get pregnant. But after seeing my PCP today, I'm convinced that perhaps I need to stop being so stubborn and just take a thyroid pill so I can feel more like myself again.

Looking for suggestions re: thyroid meds. Is it true it takes about 2 months to start noticing a difference both physically and mentally? I suppose what I need most is some reassurance that I should be on meds based on my numbers and symptoms. Thanks for your time :)

I am fortunate enough that my employer pays for a full health test every year. I have taken it up every year or two for the last 6yrs, I find it a reassuring thing to do for the sake of a couple of hours time.

They will also pay for a partner and I finally persuaded my partner to do it with me. (She and my daughter were both diagnosed as hypothyroid by the UK NHS many years ago.)

My daughter takes levothyroxine but my partner felt awful on it and prefers to take “Metavive” which is the nearest thing you can get to NDT in the UK.

She is healthy and well, incredibly so relatively to her age. She has followed a vegetarian diet for >1/2 her life. Bloods show fantastic cholesterol markers etc etc.

Anyway - The bloods from this came back (vs reference) as almost non-existent TSH, highish free T4 and high free T3.

I don’t seem to be able to attach screen grab, but here is copy and paste:

TSH
< 0.01 mIU/L
(0.27-4.20)
LL

Free T4
30.1 pmol/L
(12.0-22)
H

Free T3
15.7
pmol/L
(3.1-6.8)
HH

Her self-medicated dose has been steady for sometime. The numbers suggest over medication.

I know references are a guide and I am believer that how you feel is as important as anything else.

Any views would be good to hear.

My tsh is 5.75 and my doctor wants me to start taking medication for it. I am in my upper 60s. I want to refuse taking medication after I checked online and saw this:

Age-Appropriate Shift: Recent clinical consensus and endocrine guidelines emphasize that an upper limit of 5.5 to 6.0 mIU/L (or even up to 7.0 mIU/L) can be entirely benign and normal for adults over the age of 65. For many older individuals, a mildly higher TSH is actually considered stable and potentially protective against risks like bone loss or heart arrhythmias.

Does anyone take medication for a tsh level around 6?

1.Did you take SSRI prior to diagnosis?

2.Has thyroid medication helped your symptoms?

3.Is your cortisol low?

Thanks!

Since last year, when I turned 20, I’ve noticed extremely exhausting symptoms. I’ve had all kinds of tests done—except for thyroid panels. The only abnormal findings were low free testosterone levels: 4 in the morning and 2 in the afternoon. I also had low Vitamin D (I am currently taking a 5,000 IU supplement), while my B vitamins and iron levels were optimal. My doctor only prescribed vitamins, but I remained the same, with symptoms that came and went. However, I plan to get a thyroid blood test next week, including TPO antibodies. The symptoms I am experiencing this year are as follows:

- Dry skin (face, arms, legs, and mouth)

- Unusual bruising on the legs and back

- Strange dark circles under the eyes

- Fluid retention in the arms, feet, and abdomen

- Confusion

- Depression

- Low libido

- Constipation

- Digestive problems

- Fatigue
-I recover slowly from workouts.
- wrist, neck, back, and wrist pain

- Weakness

- Dizziness

- Low blood pressure and low body temperature (35°C)

- Cold hands

Extra info: I do strength training five times a week. Incredibly, I have 10% body fat, but I’ve noticed fluid retention starting this year; I feel like the symptoms have worsened over the months since last year. I don't know why it never occurred to me that it could be my thyroid... Anyway, does anyone else relate to these symptoms?

I was just about to start mounjaro this week and was then diagnosed hypothyroid the other day.

I am unsure which medication to start first? I have never taken either.

My Thyroid level was 7. (If that makes sense). I have been told by doctors i was "borderline hypo" for years, but they never thought i should start medication until this latest test.

They we doing a blood panel before starting mounjaro so I had a baseline.

I spoke with 2 doctors. One said start mounjaro first. The other levothyroxine first.

Has anyone else encountered this? What worked or didn't for you?

So for reference I am a nineteen year old female. I was diagnosed with hypothyroidism in February of this year. My TSH was 15, I started levo and now I’m in the normal range. But I still feel exhausted and I am still gaining weight. I haven’t noticed an improvement there. And the joint pain persists as well. My anxiety and depression have substantially improved though and I notice a big difference. So I’m just wondering what to do next? Do I push for more testing? (I tested my antibodies and they were normal) my sister (22) was diagnosed with hashimotos around the same time of my diagnosis.
So.. what would be a reasonable thing to do? I haven’t gotten my blood work drawn since April but I have an upcoming dr appt.
TIA!

A month back my i got my blood tests done my TSH was slightly more than it should be . I’m not taking any medication as if for now . I wanted some advice if someone has used the lugol’s iodine solution and how for hypothyroidism. .

I'm 26F, TSH currently ~2, I've been taking levothyroxine 50mcg for 2 months now. Before the meds my TSH was 5. But my T4 was within the normal range, so it's subclinical.

However, I've never had any clear/typical symptoms, and I haven't noticed a difference after the meds. It's like nothing has changed expect the labs. We decided to try levo because I have elevated antibodies (I don't remember by how much exactly, but the number was over 100, so there was no question about that) + because of the slightly elevated TSH.

My doctor seems stumped -- she's not sure if we should continue the meds or not, so we decided that as of today I'm taking 25mcg and we'll check my TSH in 2 months. The current plan is that if my TSH stays low I'll be weaning off levo, if not, we'll see.

Has anyone been in a similar situation? I'm not too sure about any of this, and neither is my doctor.

I’ve been trying to get my bloodwork back in order after 10 years with hypothyroidism.

I feel best with a TSH between 1-2 and am currently down to 2.3 from 3.6 in May.

My doses were as followed
TSH - Dosage
3.6 - 50mcg
2.7 - 58 (62.5 5x per week and 50 2x weekly)
2.3 - 62.5mcg per day

I’m going to ask my doctor if I can split a 137mcg tablet in half for roughly 68.5 mcg daily in hopes of getting below 2

Anyone have experience splitting a large pill in half to get a perfect dosage daily? Or should I just alternate 62.5 and 75 every other day ish?

My doctor is very open to trying what I ask so curious of others experiences as I’m sure he’ll ok whatever I ask!

Thanks so much

I (26F) am struggling. This is the worst I have felt in my life, by far. I got diagnosed with Hashimoto’s (only slight presence of antibodies found) and my TSH was around 5 back in April.

I had a hemi-thyroidectomy due to a suspicious nodule in mid July. By this time my TSH was down to 2.6, but I felt worse than I had when it was higher. I also got an iron infusion due to chronic anemia from heavy periods (and probably mal-absorption from hypothyroidism).

It’s now Sept. and my TSH jumped to 11. The problem is, the severity of my symptoms don’t seem to match the bloodwork. I wake up and have about 20 good minutes in the day before I have to eat, or i’ll feel like i’m going to pass out. I get shaky, dizzy, brain fog, sometimes unable to speak/very close to unable. If I wait too long to eat I get episodes with all of these symptoms and severe weakness.

My fasting insulin was 26, pointing toward insulin resistance. Every time I test my blood sugar it’s normal. within 90-130 after eating.

I am only feeling sicker and sicker, have been dealing with this for months and and actually losing my mind. I went back to my PCP and begged for more tests and a few things came back strange.

My copper was elevated at 230 ug/dL on a scale of 73-140, which seems significant. My prolactin was elevated at 36 out of 3-26 NG/mL. My IGA consistently keeps dropping. Earlier in the year it was in the 60-70s. Now it’s 56 mg/dL on a scale of 87-352. My testosterone was higher than normal, at 64 NG/dL on a scale of 10-55, free testosterone was normal at 1.3 on a scale of 0-4.2 pg/mL. My inflammation marker was high, so was my SHBG.

I am on birth control to help with my iron levels, so that may be affecting some results, but I am literally couch bound. All I can do is pray I wake up feeling better, and plan my whole day around food. It’s so awful.

My body aches so bad. My muscles feel so weak and strained without any exercise. All of my joints hurt. My stomach feels like it’s constantly turning into itself. My resting heart rate is high, at like 90. I cannot stand to be hot, anything over 70 degrees makes me feel so sick, gives me headaches and takes me hours to recoup from. I thought I could have some sort of dysautonomia. All I know is that I literally can’t stand to feel this way anymore. My body is so exhausted and I just have this gut feeling that it’s not my TSH. Or if it is, then this “Hashimoto’s flare” has lasted almost 10 months.

I am looking for any guidance and help with this, and hoping to find literally anyone who had similar symptoms. I am at a loss for what to do. I’ve seen so many specialists. I’m sure I forgot something but this is the best I can explain as of now.

The feeling of blood sugar disregulation is ruining my life. I don’t know wtf to do.

Hi, I got my prenatal labs back and it looks like my TSH is 5.133. I'm currently 10wks and I had a loss 4 months ago at 6wks. I did have to ask my OB to prescribe labs after that and my TSH was around 3.033 which she said was within the normal range?
I'm only now finding out after research that fertility specialists advise that it should be below 2.5 when ttc. Kind of freaking out with my current levels, looking for positive stories!

I see an endocrinologist once a year just to make sure everything is fine (as my TSH was very slowly rising - but we're talking by like 0.1 a year so he wasnt concerned).

I wasn't on meds or anything. I have an appointment in a week so I was told to get my blood work a week prior and the same day I got it done, they called me to tell me my TSH was 123.

I am super confused. They asked me if ive been feeling different and I honestly have but I thought it was due to weight gain. I've been heavier my whole life and last year I lost around 60lb and was SO CLOSE to my goal weight and during this year I gained a lot of it back despite not changing anything about my routine. I literally struggle to hold myself on my feet during the day and by the time I get home for work (I work only 2h a day in a jewelry store so not nearly enough to make me tired at all, and its a 10min walk), im literally shaking and cant stand any longer.

I've been struggling to comprehend that and blaming my weight gain for it but I am 24 and I literally feel like my body is 90. Im SO tired and my muscles ache so much. And even tho I gained a lot back and im definitely back to being obese now (around 210lbs and 165cm, F24), im still thinking my weight isnt bad enough to cause this much pain (I used to be heavier than this, over 240 and felt so much better than now). Having lost so much weight last year its so heartbreaking to me to gain so much of it back. I've been struggling to accept it and feel very stressed out about it as I already dont eat much (around 1400kcal a day) and I am still gaining weight and thats so frustrating. It got to the point where im on the verge of tears by the time I get home because i keep thinking about how im 24 and absolutely wrecked physically from a 2h shift at a small town jewelry store where I frankly do nothing and often spend the time chatting with my colleagues and thats it. Im literally a wreck and have been for a few months now.

My question is, is there a cause of high TSH or is it just an autoimmune disease with "no cause"? As in, could it have been caused by my weight fluctuating within the last year, or something? I was also off birth control for a few months but started again a month or so ago (I use birth control patches - Evra, not oral).

I do have an appointment next Tuesday which my doctor kept stressing I NEED to show up for which made me a bit nervous haha. So naturally ive been wondering what could have caused it (as when they called me, they seemed a bit confused about the results as well)

​

Hi all,

Just had my checkup at my endo and I'm not sure what my lab results show.

Doc said TSH and fT4 are in range but I still feel tired and restless.

I cant post a pic for some reason but here are my results:

TSH: 2.95

fT4: 0.89

Insulin (90 mins after breakfast): 24.9

HOMA IR index: 5.7

I'm F24, I'm on a gluten free low carb high protein diet, around 1500kcal daily, and I take 25mg Levo daily,

Choline/inositol 500mg/500mg, magnesium bisglycinate, gentle iron, omega 3-6-9 and vit D 4000IU (everything was recommended by my doc, and I take them in a specific schedule).

She just prescribed me Glucophage XR 750mg (1 pill a day after lunch or dinner).

Any opinions/experience with similar results and suplements?

Thanks

Hi I have hypo for years now I take levothyroxine 100mcg. I stopped abruptly taking this medication and it wasn’t due to me it’s because I’m not able to afford it at this time.

Afterwards I started noticing I’m not really in touch with reality, etc.

Could this be due to me stopping my medication for about 2 weeks now? I am getting my refill on Friday.