Michelle:
This is familiar. My operation went very well, but I was unusually apprehensive about every little thing afterwards and did not sleep more than a few hours total in the first week. I needed an antianxiety med for the first time in my life, but it worked. After going home, I needed it a few more times before I could go to sleep without it, but by the end of the 2nd week post-op, I was much better and sleeping fairly normally. Since then, I still pay a lot more attention to normal aches and pains than I did before, as if they might mean something more serious, but they haven't and I am basically very well, as you will be. Try to relax, ask for something to help calm your nerves if you need it.
Bill