MSFinals-1543
A 14-year-old boy comes to the clinic with his parents who are worried about his recurring abdominal pain, loss of appetite, and nausea that has been going on for two months. The pain is severe, occurs in the mornings, is intermittent, and can happen even during vacations. The boy’s weight is average, and there are no abnormalities found during the examination. What is the probable diagnosis?