Hi Wisewoman
I have IBS-c/ Diverticulosis, I have to really watch how and what I eat. Fatty foods are a trigger food. But I've been told to advoid eating to much at one sitting. It over stimulates your diagestive system. Causing the wonderful run to the bathroom. ( I know all the clean public restrooms within 50 miles) I'm on Zelnorm now to stay regular and then Elavil for nerve pain in my stomach. All I can say is eat high fiber foods and small meals 4-5 times a day. That way your system doesn't get overloaded all at once. Good Luck, I hope it gets better for you soon.

Monty