I get this a lot. People find me intense, intimidating, too "smart" ("you're a smart one, aren't you?" when all I am doing is trying to engage in what I consider social chit chat!), too deep, etc...
On the one hand, my special interest (people) can help in social settings, because I am highly interested in how people think, etc, which makes it easier for me to ask them questions about themselves, yet at the same time, I tend to come across as though I am somewhat interrogating them, going too deep (I sometimes make people cry from going too deep! Oops

).... People also say they can "see me thinking" when I am talking with them...
I think that, as much as talking with others exhausts ME, it appears that others talking with me can exhaust THEM as well.... Hmmm... This might be due to the fact I have to intellectualise my conversation rather than naturally just "flow" with others, plus I hate being stuck at just the surface level of conversation (boring!) and would rather talk about the interesting stuff at a deeper level.... I am also just trying to understand them, and that takes a lot of questions!! lol I have learnt that if I assume stuff about others, I am usually wrong, so these days I prefer to ask questions in order to get a more accurate picture... (I guess they expect me to understand better through their nonverbal messages, but good luck with that

)
Oh, awhile back( actually some decades) a coworker laughed at "this" and said I should have become a Psychiatrist: " because you like to pick everyone's brains...... "
It's sort of strange I guess because who looks at these details or finds this area interesting enough to probe? I'm the only one so far.