why the pain?

Today was our inspection for our condo. Very exciting . . . except the fact that it took 1 1/2 hours and my back really really hurts. I was trying to be professional and walk around, but I ended up sitting on our new living room floor. Usually I can deal with the pain everyday, but once in a while the pain becomes unbearable. I came home, took a bath, and am sitting with a heating pad, but I still can't move very well or bend over. I guess that's why I'm having surgery, huh?