Is it intuition or perception or?

I am not shy, I am not emotionally sensitive, but the mere physical presense of another human wears me out. It is if I have some subconscious mechanism that is switched "on" by other people just being in my space. An involuntary awareness that I can't "tune out", when activated for very long exhausts me.

I'm wondering if this is common with INTP, and would be interested in thoughts about whether this is related to intuition, perception, or just random strangeness (I have lots of that).

Thanks for any thoughts.