Hi, I m concerned about my father who lives in Florida, is 89 years old and has been vomiting mainly at night after going to bed for about a month. He says that he has stopped eating at night - I m not really sure what that means ( no dinner or no after dinner eating...) so he won t get nauseous overnight. He has type 2 diabetes, has experienced at least one TIA, has a small heart attach in April and had a stent inserted, is on meds for high blood pressure, gets very little exercise, but has lots of stress taking care of my mom. I just learned he is having an ultrasound of his aoerta and some procedure involving his esophagus this coming week. What do you suppose the doctors are worried about? Thanks.