I say tell them if they don't like it then they don't have to look at you there is another direction to look. Go ahead and rock heels if you look good in them I say go for it. Don't let what people think in the world have a say so in what you do or say or anything like that unless they mean something to you ( mom dad etc etc).
Model recruiters would love to come across women that are your height and then again many men find women your height attractive also...not all men like short women. Its the short men that may feel intimidated by taller women. As for the girls and boys that comment on your height...just let them know that you love it just like you said; there's nothing wrong with it. And if you feel that you want to wear heels go for it. If its with a date and he's tall that would be the best time to wear heels.
Alot of the girls who mention my height actually say they wish they were taller, so maybe whoevers commenting on it to you are just jelous?
Usually the guys I know love how tall I am, even the shorter guys who are like 5'7! But I wouldn't go out with someone that small it would make me feel manly!
As for the heels, yes wear them :) when I go on a night out I like to wear heels (like most other girls) I just have to choose them more carefully because if I get them too high I would feel like a drag queen :P
be proud of it,tall girls are beautiful. never do anything to make yourself look shorter,don't slouch,don't bend your knees,you should make the most of it-get fit,wear heels,play up the whole exotic tall girl thing. look up to veruschka