I have a similar question. After I had Covid, I developed Sibo. I am wondering if this small intestinal bacterial overgrowth infection possibly could have caused my small fiber polyneuropathy? It’s hard to know the relationships - Did the Covid cause the SIBO, did the COVID cause the Peripheral Neuropathy, did the SIBO cause the or a Peripheral Neuropathy or is it all idiopathic and these are unrelated complaints? Or do I simply stop wondering and just except things as they are, and treat the symptoms? Anybody else have any thoughts?