Cause of sudden, woke me up at 5 a.m., abdominal/intestinal pain from my diaphragm down to my groin? Could barely move. Heating pad over the past 5 hours has relieved some of the pain and the intensity, but there is still some as well as residual bruising feeling. Not constipated, no fever, no diarrhea. Ate chicken and vegetables last night about 8pm.