and have diverticulitis pain about twice a year for the past 10 yrs. Right now I'm on antibiotic for an attack. Pain started after having a diarrhea episode (ate large salad w/corn, tomatoes). After the holidays I'm going to make appt w/gastrologist. I have a colonoscopy every 5 yrs. Some diverticuli showed but othewise healthy colon. Does a CT scan show problem even when I'm well?