do food log, any food allergy? Intolerance? fluids intake? which part of belly pain? Sharp/dull pain? what is the stool like? Color? Shape? Constipation? Diarrhea? family hx of celiac disease? child’s hx of any autoimmune disease? for boys, check hernia? Umbilical and inguinal hérnia? Check male organs? For girls, ask private questions? Menses regular? Discharge? Any ??? Behavior? or ask all the questions to doctor and she/ he should order blood or image test for differential test...