Pain areas: in the abdomen, joints, lower abdomen, or rectumPain types: can be mild or severeGastrointestinal: bloating, blood in stool, bowel obstruction, diarrhea, nausea, vomiting, or flatulenceWhole body: fatigue, fever, or loss of appetiteAbdominal: cramping or tendernessAlso common: anal fissure, arthritis, depression, flare, mouth ulcer, skin rash, slow growth, or weight loss