SIBO After H. pylori Treatment – Hydrogen Dominant + Methane, Severe Brain Fog & Dizziness
Hi everyone,
I recently tested positive for SIBO after dealing with H. pylori for months. I completed treatment and eradicated it (confirmed by breath and stool tests), but now I’m dealing with SIBO.
My results show hydrogen-dominant SIBO with a significant rise (baseline 4 → 57 at 90 min, peak 160), and methane levels also elevated (peaking around 23) — so it looks like mixed SIBO, but mainly hydrogen.
My symptoms:
- Brain fog / groggy feeling
- Dizziness and weakness (this is the most concerning)
- Constipation (sometimes) + occasional diarrhea
- Abdominal pain
- Weight loss
- Fatigue
- Food intolerances
The dizziness and “foggy head” feeling have been really worrying. My doctor even referred me to cardiology, but everything looks normal so far — yet the symptoms are still there.
I’ve been prescribed:
- Xifaxan (rifaximin)
- Neomycin
- Also currently on a PPI
I’ve read that neomycin can have some side effects, which makes me a bit hesitant.
For those who’ve been through this:
- What helped you the most during treatment?
- Did you take probiotics alongside antibiotics? If yes, which ones worked for you?
- Any tips for managing the brain fog and fatigue? Is it related to SIBO or something else?
For context, my endoscopy last year showed gastritis and H. pylori. H. pylori is now gone, but SIBO has come up instead.
Would really appreciate any advice or shared experiences.
Thanks 🙏