Ever consider being "put under" for oral surgery? I know that they sometimes offer to lightly knock you out but I'd go for full unconsciousness.

I say it out of empathy--I have never been able to go through a full GYN checkup without breaking down. My last Dr. suggested I get admitted to the hospital and "put under" for my exam because the anxiety is so extreme.

A plan is a great start, but be aware of what you need to get through it!