My 16 month old has had chronic abdominal pain since he was born. At 4 weeks, he was hospitalized for acute gastritis . Basically his bowels shut down was what I was told. He has had a series of tests-- upper GI, barium enema, ultrasound , X-rays--all showed he was full of gas but anatomy was fine. This was at 4 weeks. At 8 months he had an upper endoscopy that showed gastritis again via tissue samples. PhProbe also confirmed reflux . Since that time, he has suffered acute pain each and every night in which he cannot pass any gas. More recently I ve noticed that at night, his diaper is dry for hours (8) and he screams in pain until he finally is able to urinate and then he falls asleep. He doesn t have a fever . He is exclusively breastfed (no cows milk as he reacts to it); his diet is very high fiber . And he has bowel movements every 1-2 days that are soft. We are followed by GI and are scheduled to go to Cleveland clinic in a few weeks but I m trying to see if anyone of you might have an idea about this horrible puzzling problem. Thank you.