panic disorde
"I started having anxiety or panic attacks 30 years ago and "suffered" through them for almost 10 years. My psyc wanted me to experience the anxiety to show how it wasn't harmful and I'd get over it. We'll guess what, I never got over them and a 
I had my GP wrote me out a prescription for Klonopin to take as needed and it has worked out great. Although I am not "cured" of my illness, I am able to function, enjoy life and do things I didn't think would be possible without it. All without any physical side effects. 
Btw, numerous times I've had skin cancer removed from my face while sitting in a chair for 4-5 hours. I've had dental implants in my mouth, which went on for 2-3 hours. All this was possible with Klonopin."