When I was in a flare, all it would take is a few bites to bring on the pain. My son, who is under a diagnosis of IBS at present, has the same problem ocassionally. His peds GI said it was his system going into overdrive. This isn't very helpful, I know, but goes to show that you aren't alone with this problem!
diagnosed 11/06, solving the mystery of years of on/off abdominal pain. No more "it's just a virus". 33f with 2 boys, a lovable dog, and a wonderful husband. 150 mg Imuran, bowel resection 9/07, healing well and feeling well. Entocort 9mg.