I googled a bit and found this text in a surgical practices
"What to expect after surgery" pageIt said...
The “gas pain” you may experience within the first 1-2 days after laparoscopic surgery is not typically caused by gas within the bowel itself, but instead by irritation caused by the pressurized gas around the abdominal organs. Therefore, traditional therapies such as Gas X, Mylicon, or other over-the-counter remedies may not be helpful. Walking, movement, and time will allow the gas to dissipate and the muscles to become less sore. As the bowels begin to “wake up,” you may experience gas bloating or cramping that comes and goes – this type of pain may respond to anti-gas medications.
You may also experience pain in one or both shoulders for several days after laparoscopic surgery. This is most likely referred pain from an irritated diaphragm (the muscle that separates the chest from the belly), which is again caused by the pressurized gas used during surgery. This should slowly improve over several days.
Not, actually, that helpful since the advice is to walk which you already know, but you might feel better knowing why you hurt. At two days your "gas" pain is probably still mostly irritation. But you could really be starting to bloat if you have received a lot of opiate pain meds (which tend to suppress the bowel motions that move the gas through.) Walking helps with that, too.
Golfnooch, see the part about
referred pain. The gas didn't make it to your shoulder -- only the pain did.