I just had my surgery on 9/10/13. I did a lot of reading about what to take to the hospital, and everyone with gas pain swore that heating pads were the way to go. Everyone said that the heating pad was WAY more effective than pain meds at resolving gas problems. That, and the dissolving gas-ex strips, which they let me take in the hospital (even though I brought them from home), were all I needed. I had one day of REALLY bad gas pain, and then my bowels got off their lazy butts and started moving.
As for indigestion, I was told that it was likely a combo of eating too much or too quickly, and it turned out to be true for me. It feels like muscle spasms just below my breastbone. I find that looking up and tilting my head back actually helps when I get too enthusiastic...
Best of luck!
-Ian