anticipatory anxiety is the main problem for some of us, it was for me
an extra dose of benzos is very helpful for these medical procedures, ask for some if you dont have any and do tell them of your anxiety problems as they arent always obvious, we do tend to become good actors
benzos also help for visiting the dentist or getting the hair done, many of us dislike being trapped
getting my haircut was very difficult, since I was trapped in the chair