Hello, did he have diabetes before pancreatitis? What was the cause of his pancreatitis? Pancreatitis may destroy the insulin producing cells of the pancreas. If this is the cause of his diabetes then perhaps he should discuss about insulin treatment with his doctor. In any case, his blood glucose cannot justify such symptoms. If you believe that his memory is deteriorating then you had better take him to a neurologist with an interest in dementia. The neurologist will be able to tell him (and you) if he has a real problem or not. Does he have diarrhea when he eats fatty foods? Why does he avoid solid foods? Does he eat in a healthy way? Is he overweight? Diabetes treatment is more effective when the patient conforms to a healthy diet and keeps his body weight close to normal.