Jenna, PLEASE get a second opinion. I am 21 and just found out I have TMJ. I honestly believe one of the culprits was that I had braces when I was very young, (10 years old). I stopped wearing my retainer when my wisdom teeth came in causing my teeth to move and my jaw to shift. If not done properly, dental work and orthodontics can do more bad than good. I don't mean to scare you or anything. If you are having jaw pain you might want to have someone look into TMJ for you and as far as the orthodontics go, see another orthodontist and ask his opinion. Bad or careless dental work can effect your whole body, trust me. Take care.