I have a horrible lower right side pain. This happens about once every six months right after I eat a meal. I have had ultrasounds, hospital visits, and tests on my appendix which always come back negative. During my hospital visit they said I was a little dehydrated and hooked me to an IV for about 30 min and then sent me home. The pain lasts 2-5 days and I can hardly walk. I will sometimes vomit on the onset of pain. I am also constipated and unable to pass gas. I have been unable to pinpoint which food is causing the pain. My entire stomach feels full of air, however the severe pain is the lower right side. Hurts when you push on it. I ve tried taking peoto bismol when I feel it starting and it doesn t help. I understand that this problem could just be debilitating gas, however it is effecting my life and my job. I can t go to work when I can t walk. I wish there was something I could take when I feel it starting to hurt to stop it before it gets worse. Any suggestions? Thank you.