Hi, I am now 11 days post-op and the worst for me was the gas pains. Oh, they were bad and sometimes walking didn't help--but lying down did. It either pushed the gas up or down...and out. I did have some tenderness/soreness on my "port" side for about 6 days and you really will be amazed at the sounds your stomach/lower abdomen make, even when you are not hungry. Is you work in an office...I would try to take a couple of extra days off because sitting for long periods of time made my gassy-ness worse. It's like sitting would get the gas "bubbles"? (I can't think of a better word) stuck and then it would be extra hard getting it to come out.
On a pleasant note, 11 days post-op, and the gas is starting to go away and the hunger isn't too bad, though I do yearn to eat something. Oddly enough, I'm craving salad. I hope this helped and good luck with your surgery. I've already lost 21 lbs so, it's totally worth it!!