Hi, I`ve been going through all kinds of tests for my bowel problems. Multiple stools,large amounts of fecal matter,emergency runs to the toilet. I`ve had a colonoscopy,blood tests,at least 8 or more stool cultures, a CT scan and everything comes back looking ok. Mornings are real bad. I take Crestor and Niacin at bed time. Is there any way they could be causing it ? Have you ever heard of them causing diarrheal or bowel issues ? I`ve seen my local Doctor and a Gastroenterologist and still don`t have any answers. This has been going on for several months. Thank you for your time and help.