I think I was fortunate when it came to the gas after surgery. By Tuesday after it was gone, so that would have been 4 days, I had procedure Friday before. But I can tell you that there has been a few in our group that it has lasted a full week. They say walk as much as you can. My gas would settle up in my shoulders, and be worse when I laid down. At night I would take my pain medication not because I had any stomach pain, it was all up in my shoulders from the gas.
So far, no exercise at all, I plan on it though. My knee on my right leg hurts, and ankle on my left, just from carrying around this weight. I bought a bicycle, flat foot technology bike, I am excited, can't wait until I am little smaller, I'm going to ride!