I,ve had something going on now for over 3 weeks. It all started with intense abd. cramping after I ate anything. This lasted for 3 or 4 days. Then it went to a burning, gnawing pain on my right side directly under my right breast and down my right lower quandrant of my abdomen. I had an Endoscopy and was told I had polyps, small ulcers and a Hiatal Hernia. He did a biopsy and found only esophageal and abdominal inflammation. I was put on Zithromax and Prevacid at that time. They made me so sick I thought I was going to die! He said it was probably the Zithromax. I stopped both of them. Then he tells me he thinks its spastic colon and puts me on Zelnorm. It hasn,t helped much. Some days I barely have pain at all and other days it nags me all day. I have never had loose stool(until today and will explain that later), nausea, vomiting or blood in my stools. This morning I take a pk. of Benefiber, thinking it might help and within 30 minutes I start having diarrhea and my stools are dark green to black??? My stools have been normal in color and consistency all along. What could have caused them to change color? I haven,t eaten anything in the past two days that would change the color. I had biscuits and gravy this morning with black raspberry jelly. Could this have caused this? I know the loose stool is probably from the benefiber. I am at my wits end trying to figure out what the heck is going on. Could this be my liver?