QQ- thanks for the explanation. I would suggest that if the situation of a surgery causes distress, then hack it to death until you are so bored with it it causes no further stress. Explain to the receptionists and then go sit in the Doc's waiting room looking at the buzzer and the numbers. Do it on days off, do it for hours until you stop reacting. When you feel more at ease, make appintments with the Doc for anything, get there 2 hours early, and wait....... Keep walking into his surgery until he threatens you with the sack if you come once more with Athlete's foot/headache/backache/rash/constipation/urine a funny colour. Then tell him why!
This is a monster you have to exterminate. Get your sister to come around before/after her shift (and do your BP). Get a professional lady to come around in a nurses uniform and chuck you around a bit. Get your wife/girlfriend to dress up and walk in on you. You have this funny association with white coats/surgeries. Aviation requires you to prove your BP is OK. Only you can reprogram your mind that white coats/surgeries do not equal terror, but complete boredom!