Hi, my husband has been having some stomach issues, bloating, cramps and throwing up bile. he has been hospitalized because of this due to dehydration. He had a endoscopy performed, and a biopsy, and everything came back negative, he was just released from the hospital, and is still throwing up bile. He hasn t been able to eat anything for about 2weeks, and I am really concerned about this. He has an appointment to see hi GI dr tomorrow, but I just wanted to know what could be causing him so much discomfort and not to eat. as well as the nausea