I guess it was weird because it was obvious I was not in writhing pain, just a normal chronic sports injury. I understand the techs see people in all kinds of horrible conditions, and I wouldn't want that job. I do not assume everyone who goes to the hospital is an uneducated, unhealthy slob; but my DH got the same attitude when he kept going to the doctor for chest pain... until finally he had to practically grab the doctor's coat and insist on an angioplasty, after a particularly horrible incident on a ride. Yes, people who are in great shape *do* have medical stuff.
I think I'm getting overly sensitive in my old age; I don't like it when I get "compliments" regarding the shape I am in (most of the time said in a tone, like "good job, how do you do it, because I can't") or, more recently, I'm spoken to like I am an idiot, which tends to occur when a medical person sees my actual birthday and they know how old I am. But that's another issue.
It's not that I don't like compliments, but it feels sort of back handed to me.