My Husband Had A Colonoscopy About A Week Ago....ever Since

My husband had a colonoscopy about a week ago....ever since he's had diarrhea and bad stomach pains...keep in mind he's a diabetic, has diabetic neuropathy, has cirrhosis of the liver, barretts syndrome, had guillain barre syndrome several years ago, has 3 stints and 5 ear surgeries on left ear due to chlosteatoma.....have any ideas??? Besides contacting his regular doc or endo doc