I had these terrible cramps in my stomach, in the center. it was usualy after eating higher fat foods. It really covered the whole abdomen. It felt like someone was twisting and turning my insides, along with a real crampy feel in the stomach. All I could do was bring my knees to my stomach and wait for it to pass. After medical test, the Doctor said I had Gall stones. I really questioned that gallstones were causing this problem because I had no other sytems that people usualy have, other then heart burn. I ended up having my gallbladder removed. After the surgery the pain occured again, and one other time while recovering. The Doctor said it had to do with a muscle in the abdominal wall, and it was related to the surgery. It been 6 years and I have not expirienced any more pain episodes. So I guess removing the gallbladder did the trick.