SIBO
I completed a round of the following tests with my functional medicine doctor: Blood test to check for parasites Breath test GI stool comprehensive profile TL;DR: It's clear that I have Small Intestinal Bacteria Overgrowth (SIBO), which is a subset of IBS. Remember that IBS is just a catch-all for chronic GI symptoms since we still have little understanding of this area. SIBO is when there is an overgrowth of bacteria in your small intestine, where there should be minimal bacteria due to the stomach acids present. The way SIBO is detected is with a breath test, which measures the content of hydrogen or methane present in a breath sample at baseline, then the values after ingestion of a sugar solution (lactulose). Only bacteria produce hydrogen and methane so if there are elevated gases, then SIBO is present. A normal result would have <20 ppm rise in hydrogen over time and <10 ppm of methane at all. My results show elevated methane gas, which is produced by m...