Do you have Persistent Digestive or I.B.S. Symptoms? It could be S.I.B.O. What is SIBO and Could You Be Suffering From It? If you have recurring constipation or diarrhea or a combo of both that has been resistant to treatment you may have more than just Irritable Bowel Syndrome, you may have a more complicated condition that causes a subset of I.B.S problems called Small Intestinal Bacterial Overgrowth ...