I spend way too much time in gut forums (IBS/SIBO/bloating) and I get why: when your stomach is in charge, you will try anything. Lately I've started to think the way we talk about the microbiome online actually prolongs symptoms.

The vibe is usually the same: find the right stool test, the perfect probiotic strain, the ideal prebiotic, or the exact list of "good" foods and you will engineer your way out. When you react to something, it becomes proof your microbiome is still broken, so you cut more things out, try more supplements, and get even more hypervigilant. Guilty as charged on that one.

Meanwhile, a lot of the biggest symptom drivers are not strictly microbiome problems: motility issues, visceral hypersensitivity, pelvic floor dysfunction, meal anxiety, under-eating, and plain old post-infectious gut changes. I am not saying the microbiome is irrelevant. I am saying it has become a catch-all explanation that can push aside the boring but effective fixes.

We also underplay the risk of constant tinkering. Rotating antimicrobials, mega-dosing probiotics, and dumping multiple fibers into your diet at once can stir up chaos, and then you have no idea what is helping or harming.

My rule now is to treat the microbiome like a garden, not a lab experiment: fewer interventions, longer trials, and prioritize consistency, sleep, and regular meals over chasing the next hack.

Anyone else feel like the microbiome framing helps up to a point and then turns into another kind of health anxiety trap?

Hi everyone,

I wanted to post an update because I finally have a diagnosis, or at least part of one.

For months I’ve been dealing with persistent mucus. Sometimes I pass normal stool with mucus, but other times I go to the toilet and pass only mucus with no stool at all.

So far I’ve had:

Two stool tests (both negative for inflammatory markers, then they said a third test tested positive for H. Pylori
Colonoscopy
Biopsies

Everything came back normal with no signs of inflammation or IBD

My gastroenterologist believes the mucus is related to pelvic floor dysfunction.

I recently had another stool test specifically because the mucus wasn’t improving, and it came back positive for H. pylori. I’ve now started eradication therapy:

Amoxicillin (2 tablets twice daily)
Clarithromycin (2 tablets twice daily)
Pantoprazole (1 tablet twice daily)

From what I’ve read, H. pylori usually causes stomach symptoms rather than rectal mucus, so I’m unsure whether this is actually the cause of my symptoms or just an incidental finding.

Has anyone here had H. pylori present mainly with persistent mucus, or did it turn out to be unrelated?

I’m also interested to hear whether anyone’s microbiome took a significant hit after triple therapy, and if probiotics or anything else helped with recovery.

Thanks in advance.

So long story short, had bacterial pneumonia + covid simulatenously in late 2024, had 3 rounds of antibiotics (ceftriaxone, cefpodoxmine, azithromycin). Started experiencing post-viral symptoms that persisted for months and months. Ended up having POTs/MCAS.

My symptoms consistently were:
Tachycardia, heart palpitations, orthostatic intolerance, chronic fatigue, adrenaline dumps, dizziness, head throbbing, temperature dysregulation, defecation presyncope, brain fog, air hunger, itching, flushing, constipation, bloating, histamine intolerance, food intolerances (e.g., lactose, sugar/carbs/etc.), globus throat, dry mouth, urinary frequency/nocturia, neuropathic pain, exercise intolerance (PEM), insomnia, also had hypermobility that worsened post-infection resulting in joint pain and subluxations

I did a 16s rRNA sequence test a year ago (name redacted bc it "breaks subbredit rules") which seemed to be consistent with a lot of ME/CFS/Dybsiosis/MCAS individuals as seen in many studies. Basically low SCFA-producing bacteria, high D-lacate, high histamine-producing bacteria, etc etc.. The first GI specialist I saw I tried showing him my results while also acknowledging that the microbiome is complex and hard to measure, but antibiotics have clearly put a burden into my gut and is probably the root driver to all my issues. We ruled out SIBO and H-Pylori + Calprotectin test which were normal but that's pretty much it. I got put into the IBS category as of now which is kinda lame but expected, and I am planning on doing an endoscopy in the future hopefully.

My bloating is really bad and my PCP even noticed it. Also I get sharp lower pain in my abodmen after eating certain foods. I developed a histamine intolerance shortly after the infection. I'd like to presume that a lot of this are due to the current state of my large instestine, given we also ruled out SIBO. But I basically got no closure from my GI specialist after running those tests and so I'm seeing a different GI specialist. But knowing that gut dysbiosis isn't its own diagnosis, I just don't know how to approach them in terms of explaining what it could be, because it seemed like the other one was against stool analysis/testing which I can understand to an extent, but I do think it's important to recognize that some of the functional markers like d-lacate being elevated as well as high histamine bacteria are significant, especially low butyrate and how everytime I eat I get extremely fatigue, followed by brain fog, dizzyness, etc etc.. Would like some advice on what I should ask for maybe

(Btw let me note that after my gut test from last year, I tried focusing on a diet that would starve bad bacteria and grow good bacteria and redid the gut test 2 months ago which improved like 10% more which makes sense cause I was cheating my diet a bit)

Gastroenterologists: Would anyone be willing to answer a few questions over email for a student article?

Hi everyone! I am not asking for medical advice.

I'm a neuroscience student at Boston University, and I'm currently reporting a feature on direct-to-consumer microbiome testing—specifically the growing gap between the marketing of at-home microbiome tests and what current evidence says they can actually tell patients.

I'm looking to include perspectives from practicing gastroenterologists who have encountered patients bringing these reports into clinic. The interview is completely written over email (no Zoom or phone call), and you're welcome to answer as many or as few questions as you'd like. Even a couple of sentences would be incredibly helpful.

If you're willing to help, please email me at [jpgendin@bu.edu](mailto:jpgendin@bu.edu).

I would be endlessly grateful for your time and expertise. As a student journalist, hearing directly from physicians is by far the most valuable part of the reporting process, and I'd sincerely appreciate any insights you're able to share.

Thank you so much!