If it is gas, I found last time that kneeling with elbows on the floor and bum in the air helped to force the gas out. Lol it worked every time, it could take up to half and hour though.
I don't know ha ha it just bad bellyache all across belly :(
Depending on where the pain is it could be gas stuck somewhere in an intestine... it would swell causing pain...sitting in a shallow hot bath should do the trick. If its not that, then call Dr or care line and ask if you should go in... wouldn't want to go to emergency to pass gas haha.....