I've been having lower abdominal, back and hip pain for the past 4 hours now. I thought it was just gas, but im still unsure. It hurts to do anything now. I can't even get up from sitting or roll over in bed with out it hurting like crazy. If its just gas then all I can say is wow..I've never experienced gas this painful.
Try different positions to get the gas out - sideways with the upper half of your body tilted up and crouching on the floor with your head on the ground and butt in the air (as best you can with your bump) - those were the best gas-removal positions for me