My husband, age 77, has been having stomach discomfort for about a week. He s been taking TUMS without any relief. He has not vomited and his bowels are normal. However, he cannot eat much and has very poor sleep habits due to the discomfort. Today he had a small bowl of cornflakes w/milk, no juice or coffee, had decaffeinated tea. I know about the BRAT diet, but that s not helping either. I am concerned about a stomach ulcer. He is facing a possible kidney transplant in the near future and has been worrying a lot about the surgery.