What Does Severe Pain In The Abdomen Indicate?

Thanks,my wife is having severe stomach pain at this time. She just had a endoscopy and colonoscopy in the past two weeks and her bowels seem to be working OK. The report indicated other than a pylon removal that was benign that everything looked ok. My son who has extensive stomach and colon problems said it could be diverticulitis and said to take an ibuprofen and give ita half hour to see if that helps, otherwise go to the emergency room.