I had that done about 12 months ago and came home feeling a little fragile but not in any real pain. In fact, I didn't need to take the painkillers I was given. The following day I was walking around and went out for tea. I wore one of those slip over your head bras at night (I'm a big girl!) but didn't find it affected my sleeping either.
Showering and washing hair is a bit of a problem for a week as you mustn't lift your affected arm above shoulder height - this is where my husband came in very useful.
Do the exercises they give you and follow the instructions as to how you progress with them.
I was one of the lucky ones as far as problems were concerned - let's hope that you are too.
Good luck.
PS It does mean no vacuuming or ironing etc as you mustn't lift anything too heavy so I hope you have someone else to take on those sort of chores.
