Shelly,
The pain will get worse as the meds they used for surgery wear off so your PA is definitely on the right track for managing the pain before it starts to hurt. After knee surgery day 2 was way worse than day 1 so don't overdue it. Also, make sure to also manage the side effects of the pain meds which can be equally as unpleasant if ignored. All that said I'm glad to hear that everything went well and I've always taken the approach that they'd might as well fix as much as they can while they're in there so it doesn't really matter what they find (within reason, of course).
And stop walking around, hubby should be your slave for a while. Make him get you a little bell.