I have a 16 year old daughter that has had severe upper gi pain. We have taken her to drs. they have done ultra sound, xray, blood work, hida scan they even put her on Nexium and the dr cant seem to find out what is wrong. The pain seems to get worse right after she eats. She vomits, she is in scrutiating pain which can last for hours. It doesn't matter what she eats or drinks the pain is always there. They have put her on phenegran and darvecit and the pain still is there. Could someone please give me the answers to what is wrong.