After 25 years of suffering periodic, severe attacks of abdominal pain, I have finally figured out it has been my gallbladder. For relief, I have been relying on activated charcoal tablets (can buy at most natural food stores). After I feel the first twinge, I take 2, then two more every 30 minutes until the pain subsides. It doesn't work immediately, but it definitely helps. I don't go anywhere with charcoal.