Is it normal to be aroused by someone with a fetish relating to myself?

Is it normal that I become aroused whenever somebody mentions having a fetish to do with anything relating to my own physical qualities, even when I don't even come close to sharing that particular fetish?

First off, fetishes don't really disgust me. If I can't understand someone's fetish, so what? I have very, very few myself, but I realize that everybody's sexuality is unique. But if someone mentions having a fetish for something relating to what I have/am, I go temporarily nuts, and almost feel as if I have the fetish for it too for the time being.

If a girl says she likes hairy guys, then my own body hair turns me on. If a girl says she likes uncut guys, then my own foreskin turns me on. If a girl says she likes sweaty guys, then I feel hot after I work out. But afterward I'm like, "what the hell?" I don't even usually care about any of this stuff, or even think about it.

Even if a gay guy mentions he likes ____ and I happen to have/be it, I admit, I'm a little turned on. It's like I want to show it off/be appreciated for it.

How common is all this? Is this some kind of autoeroticism? For the record, I don't usually find myself the least bit sexually attractive. I like the way I look facially, but I don't care for any of my primary or secondary sex characteristics. IIN?