I haven't had Rhinoplasty, but I had my septum straightened.. which is nose surgery.
It hurts like HELL for the first 2-3 days afterwards, but heals fast.
I was miserable though. They pack your nose to hold everything in place.. you get these tubes in there to breath through but they clog up after about 2 seconds. You gotta sleep on your back mostly so you don't bump it or anything.. that hurts like hell too.
If its something you want, and it will make you happy with yourself and give you more confidence, go for it!