How Do You Know if You Have a Broken Head?

I like to always, as a term of endearment, right? Say, hi, doc, instead of saying hi, doctor. I was just polite to tell them that there's something someone coming in. But it's not like they're shot in it. They're like, how do you do that? Oh, no. It could be the same thing. Like your more conservative vision bla, but your head. You don't know what the doctor is like.