Have you ever felt deeply uncomfortable around a person but can't identify why? :S

I'm not trying to pretend to be a psychiatrist, but I think said person is either a sociopath/socially retarded/highly insecure or perhaps even egocentric?

I didn't read through it fully but I definitely feel extremely uncomfortable around some people. Even when I meet a new person, I can figure out straight away if I'll like them or not. I guess I'm just sensitive to people's personalities or something but it's to the point that if I really don't like someone, they make me feel really creeped out and uncomfortable around them, even before I talk to them.

For example, the deputy-head at my school really bothers me. He's attractive, charismatic, smart, well-presented, well-spoken and good at his job but the very first time I met him, I felt weird and on edge. I just feel like he's got a false personality he puts forwards and I didn't like him from the start. I thought I was just being irrational until he got creepy with the older girls at school and had an affair with a married teacher during school hours in a classroom. Somehow this guy still has his job but I still don't like him at all.

I've also met a couple other people that put me on edge like this but I just avoid ever meeting or interacting with them again.

Some people can subconsciously pick up on small actions a person makes and learn a lot about them from that [some think it's a 6th sense but just think less extreme than Sherlock style observations] We all do it to some extent just that some people are more sensitive to it, maybe it's that?

Also, have you ever seen a dog meet a new person they didn't like? Dogs can definitely pick up on something we can't because I've seen dogs freak out and get really defensive around complete strangers they'd decided they didn't like. Maybe it's actually an instinct we've lost through evolution or something? Idk though, I'm no expert :P

I'd be wary of her too, from the description you gave.

Personally, I'm repulsed by false/put-on charm. Those people who are overly polite without being kind, are more offended by swearing than necessary, and make small talk without really listening to your answers. Strangely, my sister always picks boyfriends with the above traits, because she mistakes them for "gentlemen", and seems genuinely shocked when they aren't the caring softie she mistook them for.

Another pet-hate is people who bitch about others shortly after meeting you. If they can bitch to a near-stranger about someone else, they can sure as heck bitch about you, too.

It's odd because she can be very sweet almost sickly-sweet at times but none of it ever feels genuine as its always undermined buy other subtle negative 'vibes'. I always come away feeling down when I have spoken to her or sought advice and just in general dread having speaking to her for long periods of time

It's odd how people seem to really like said person. Do you think there's a reason why a lot of people seem to be won over by their persona so easily, whilst others like you and I and the people on this thread are more wary?

I'm not trying to pretend to be a psychiatrist, but I think said person is either a sociopath/socially retarded/highly insecure or perhaps even egocentric?

Yep the last paragraph hits the nail on the head. Something to do with uncontrollable microexpressions where the person reveals their real feelings for a split second before they put on an emotion for public consumption. Its like her actions and microexpressions dont match her words/charm so the incongruity between the two puts me on edge and there seem to be many inconsistencies in her stories

Also she doesn't seem to react to situations in ways you'd expect an average person to react which I find really odd, and often the expression in her eyes often seems blank/empty/expressionless though these are veeery subtle things to pick up on. Very odd considering so many other people seem to love her.

Also you don't want to start trusting a person who initially set warning bells off in your head only to have them screw you over massively.

Spot on. We might be verging on claims not completely verified but I wouldn't be surprised if that were true. I felt really defensive when I first met her and it was a pretty strong feeling. I reckon we ought to trust these sort of instincts more - after all they developed for a reason right?