I've had IBS for 20+ years and have been dealing with a flare up now for two months. Went to my doctor and she ordered an EGD to rule out ulcer. Nothing was found, which is good, but still having bowel issues. Pain is worse at night just like I've been reading other posts on here. Usually taking Levsin helps but that is barely helping this time. I'm thinking this is something worse than IBS, eve though my doctor assured me it's not. I'm on the FODMAP diet, which is horrible. Nothing sounds good to eat and have been nauseous at times. Would like to her order CT scan for peace of mind.