My gas pains were severe. I was on the table several hours longer than planned (long story) and as a result had excessive amounts of gas pain. If your pains are real bad and the walking/heat pads don't bring you relief, don't let them make you suffer, you can always request relief. You may want to try a combo of GasX/di-gel (simethicone?!?) and a suppository to get things moving. After suffering for 3 days with no relief and countless laps around the recovery floor a new shift nurse finally brought me this combo and it seemed to help get things started again. She also told me the co2 can cause your insides to "sleep" and the pain meds can make you constipated slowing down the absorption process. Just make sure they give enough simethicone it wasn't until I went home and took a double dose of Di-gel before I got any progress. Also my wife bought me a heat pad which helped tremendously even after the gas pains were long gone.