I too hate those things. I have managed to do them without sedation so far. I am a large woman so the last one I had I was touching the sides with my arms. *shiver* anyway what got me thru it was to focus on something else and keep my eyes closed. slow deep breaths. you don't want to take too much valium. you do want to be able to walk out of the place. take care hon and remember slow deep breaths. maybe learn some other relaxation technics