Hand flapping and egocentricism

(ohio)

My daughter is now 12. She has for a long time now, been shaking/ flapping her hands when she is excited. I have also noticed, she is still in the stage of egocentricism. She is not mean to other people or doesnt try to purposefully hurt them. She says whats on her mind, no matter what it is. She may tell someone your teeth are ugly or that is a horrible hair color. she only thinks of herself. she is only concerned w/ whats going on w/ her at that moment in time. I truly dont think it is intentional. she is not trying to hurt someones feeling when she says this stuff.

She is sensitive a times to others feelings. Its hard to describe. If there is a situation of concern w/ someone she is just concerned how it will affect her. i of course have been correcting her and teacher her values, but i can tell its just inborn. It's not something I can change. It's almost like she is not aware of consequences of some things. she is very smart, and getting good grades in school. She has good relationships w/ her friends and family. she does sometimes act very immature for her age. I have had her tested for ADD and she was positive. I feel that this is more than that though. any thoughts?