My 4 year old daughter suffers from abdominal pain of unknown origin. It stops her from playing, even wakes her up in the middle of night crying. These "episodes" last from 10-30 minutes each, during which she does not move around and cries. They occur a few times of week, for the last few months. Her eating habits have not changed. She does not have a fever. She does become lethargic at times, napping during the day even though she gave up naps two years ago. I took her to the MD, who did an exam, followed by a flat plate xray of the abdomen and a CBC. The exam was positive for tenderness in her lower abdomen. The CBC was normal, the xray showed stool in her colon. She does have 1-2 good sized stools per day. With no straining. The MD diagnosed her with obstipation. Per MD's advice, I've been giving her Benefiber 2tsp/day. She is still having this pain, though her stools are more frequent at 2-3 per day. Is there anything else I should be worried about? She was never constipated, her stools were always soft. She also did not "hold" her stools. Should I get a second opinion?