There isn't much pain the day of the operation, as one is still riding the crest of the general anesthesia, but the next couple of days are horrible ... no doubt because one is strung up and strapped down (as seen in the pic here ==>) in a position that's convenient for the medical team, but involving leg and arm angles (as well as gut and sides stresses) that one is unlikely to be accustomed to. For hours ... as they have various pieces of equipment shoved up one's boy parts as access to the kidneys.
I've pretty much spent all day in bed, trying to find a position that doesn't hurt, while playing games on my new phone, and watching The Bears. While I'm OK when standing, and reasonably OK when sitting, making the transition feels like being pulled apart on the rack. No fun. What's even less fun is that the pain meds they sent me home with are only vaguely working, and I tried to go to Alleve, but a dose that will usually make my back shut up when it's hurting isn't doing anything either. Bleh.
However, I realize this just muscle pain, and within 3-4 days it will have faded into a bad memory ... but in the meanwhile I'm one cranky SOB. Be warned!