My father is 73 years old and has type 2 diabetes. He underwent GJ (gastro-jejunostomy i.e. gastric bypass surgery for a peptic/duodenal ulcer ) about 25 years ago. He feels completely washed out and totally weak every time he empties his bowels or a full bladder. He also suffers from hyper-salivation and noone has been able to identify the reason or provide relief. Any thoughts or help in dealing with this are highly appreciated. Thank you.