I’m posting a link here that explains in detail the symptoms of Small Intestinal Bowel Overgrowth (SIBO), and how it is often an underlying cause of IBS. In my clinic, I’ve diagnosed this several times, even after people have already consulted with their gastroenterologist, which indicates that SIBO is not “mainstream” enough for most doctors to pursue the appropriate testing. All that is required is a simple breath test-Once diagnosed, this condition is easily treatable, so talk to your doctor about performing the test if you’re experiencing recurring digestive symptoms, or have been diagnosed with IBS.
http://www.medicinenet.com/small_intestinal_bacterial_overgrowth/article.htm