What is wrong with me?

[CompletelyFUBAR]

Some people just don't seem to like me very much. Or they are very nice to me one day and completely blank me the next. I'm very insecure (obviously, or it wouldn't bother me), but I do try really hard to be nice to people. I do care about that. What am I doing wrong? Is there something fundamentally horrible about me? Anyone else feel the same?

I think some people can just be very preoccupied with some thought or issue and as a result come across as
You come across as a nice person Op and i wouldn't take it personally

*come across as appearing that way.

Hey sorry you're experiencing this.
In what ways do you try really hard to be nice to people. Like, it's possible that you are coming across very intense? So not that people think you are horrible but they might want you to relax and take a bit of a step back...

People in my family have aspergers as probably do I, as a result over the years I find i read a lot into what people say and do and also study people a lot. Sometimes people make small talk, sometimes they're preoccupied, sometimes what you're saying strikes a chord with them. Mostly I've found people talk more about something that involves them. Also you just probably havent found the right people! If you're being pleasant you shouldn't have to work at it, if you do they're not totally worth it (but obviously still make conversation etc to be polite!)

I agree with Stayathomer

This can often happen to adults with undiagnosed hfa(high functionung autism.) have you any other signs that this maybe something you should consider?
Do you shut down or become exhausted after being in a socual situation.?
Do you bite your nails or have any facial tics or similar habits.?