There must be countless people with such fantasies. Most of us played some variant on "Doctors and Nurses" when we were kids.
It is a very intimate professional relationship - it can be both physically intimate and psychologically intimate.
As a retired psychotherapist and sex therapist, I had many people discussing their "doctor" fantasies - maybe in the hope that I might fulfil them - and there must of been several more that didn't have the courage to tell me.
So, no, you are not crazy.
However, I'm not sure what you hope to get from this thread. Shared fantasy material? Or a playmate who will role-play a doctor for you?
Good luck.