I have had twice now in 6 months thus horrendous pain under my right rib. like severe cramp , makes me scream .after it feels like a ball in my tumm?

Abdominal or pelvic: Knowing your age and status of health otherwise would make my answer more specific. Right upper abdominal(RUQ) pain most commonly comes from gall bladder, intestinal, and kidney problems. Sometimes, pain can also be referred there from the ovaries and cecum(near the appendix areas. Look first at gallbladder area, unless having symptoms of bowel blockage