I really believe your gas pains are from the gas they inflate you with for surgery. If that's true, the good news is, you're only a day or two away from that being totally gone. If it's that, gas medicines do nothing for it. Pain medicines can help if it gets really bad, but that can be constipating. Things that helped me the most were taking breaks from the abdominal wrap, changing body positions often (stand, sit, lie down, hold on to a chair and lean forward for a minute,...), & walking. I remember the gas pains being bad. I'd lie on the floor and try to physically push the gas out of me!
You can call Tory and ask if you can start protein shakes early. She let me start them a little early.