Does anyone feel intimidated or uncomfortable when you're around tall people?

I am a12 year old girl and I am 6ft (Yes I know, astonishing isn't it, please don't post things like oh my gosh! your 12 and your 6ft??!!) sometimes when I walk into a clroom and we have a substitute teacher, they shy away from me like I'm some kind of freak, and I'm taller than a lot of boys in the years above me (I'm in a big school) And they all call me Hagrid (this is also to do with my madly curly hair) So my friends all have to deal with restraining me from punching them in the face.... Anyway I'm going off the point, Are you intimidated by taller people? If so.. why?