Sibo. takin rifaximin. wats my chances of a c diff infection from this med? i read it can. then i read it can treat it. 550mg every 12hrs

What's going on?: Small intestinal bacterial overgrowth? A real diagnosis, or a pop self-diagnosis for your self-described tiredness? If the latter, i'd urge you to maintain a healthy skepticism but your experiment is basically safe. If you're going to do this, at least be alert to the warning of pseuomembranous colitis and get treated by an evidence-based practitioner if it happens.