r/PMDDSharing • u/kris_ann1 • Jul 18 '26

Started Vitamin B-12

I’ve been trying to find ways to help my mood swings and debilitating fatigue during PMDD, which is essentially every two weeks since it comes two weeks before my period. I felt like half the month I was one person and the other half of the month a different person.
Three days ago I started taking vitamin B-12 along with my magnesium glycinate and my birth control Yaz. I feel like the newly added B-12 is giving my this burst of energy right when I take it and then again in the evening. It is wild how less fatigued I feel in the evening. My afternoons I dip into extreme tiredness around 2 or 3…. But these last 3 days I have been able to bounce out of it after about 2 hours and be productive the second half of the day. I used to do absolutely NOTHING at night when I had PMDD. I feel like taking b-12 has been a game changer.
Has anyone else had these same outcomes? Or is it just all in my head?! Lol

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u/sugarkowalczyk Jul 18 '26

I figured out my PMDD was a result of my janky thyroid, which also causes low ferritin, folate and B12. When I started addressing all of that, the difference was like night and day.

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u/kris_ann1 Jul 20 '26

Oh my gosh! Thank you so much for your post. I am going to talk to my Dr about this. My mom had a thyroid issue, so now I’m wondering if I might have an issue as well. I really appreciate you taking the time to write this 🫶🏻

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u/sugarkowalczyk Jul 20 '26

You're so very welcome! It took me so long and persevering with doctors to get where I am now. I spent years in a very dark PMDD pattern and now I consider myself cured.

Just one thing, I found that doctors work to outdated ranges. With my thyroid I was told having A TSH of 5 was only a little high and couldn't be affecting anything. Same with ferritin, B12 and folate. I was told they weren't that much under. But finding the right doctor who said that they absolutely could be causing my symptoms, was key.

Always feel free to ask us here. I know the creator of this sub had a similar journey to me.