Oh yes, I know the feeling. However, I don't get the muscle guy judgment. Only two things are said about me physically . One, that I have the longest eyelashes anyone has ever seen (and its a damn curse I tell you), and two, I have very very blue eyes. I am proud of my eyes, but every time I get these "compliments" I always feel compared to women. Women mention my eyelashes because they want them, and the same for my eye color. Never have I been complimented on anything physical or material, not even on my clothes, from a guy. And never from anyone have I been complimented on my other physical attributes, which I don't think they're that bad.
But usually people think, oh, that kid must be a nerd because of the classes he takes/the grades he gets. First of all, the "nerd" stereotype is something I don't even come close to fitting, but because its what they expect, people come up with excuses. "Well he doesn't have glasses and stick pencils behind his ear, but that's not absolutely necessary". I know that I am stereotyping to say that I don't look like a nerd, but seriously, I don't. Second, it drives me NUTS because I'd much rather be told I'm a sweet guy than told that I am smart. Who cares that I'm smart! What about the fact that I used this knowledge to help you with that physics problem you were struggling with. Its never "Thanks Tyler, I really appreciate your help", its "You're like a robot with numbers!". WTF?
I guess its just that we'd really like to be taken as a whole when being judged, but you can't expect that. I mean, I would LOVE for someone to tell me they thought I was good looking (or even hot [even though I don't like my chin]), but I'm never really surprised when it doesn't happen. It's just one of those things.