15 year old daughter who has recurrent abdominal pain. Has had 2 upper and 1 lower GI, all have came back negative. 2 years ago, had her gallbladder removed. She was pain free for 1 year, then pain came back. Usually worse in morning, and is always worse after she gets a cold sore . Pediatric Gastro we see doesn t know where to turn next. Have tried low dose cymbalta, but also did not work. Have tried all kinds of weird diets, all to no avail. Does not have reflux. Any ideas....thanks