C.Y.
I had one that I had removed about 1 1/2 years ago that was about the same size as yours. I had the surgery done at UNM and the recovery was not that bad. The worst pain that I had in the hospital was in my shoulder. They sometimes have trouble getting all the air out before they sew you back up and you end up with an air pocket. A popular place for it to travel to is your shoulder.
I think that I stayed on the couch a lot for the first week. After that I was up and walking around, not for long periods of time though. I could not pick up my son, who was about 20 lbs., for 6 weeks.
I have a pretty big vertical scar from my belly button to my pubic bone and I had pain there for about 6 months. But it was not horrible pain, just hurt it you put pressure on it.
I hope this helps. Let me know if you have any more questions. :)