I have the same problem when I was 10 already had a 34 DD boobs. I remember when I was at school this guy came up to me and said ''you have boobs'' he said it in the front of everybody and I was so embarressed. I wanted to say back '' do you think I don't know that, I have a mirror and look at them everyday''
it all depends on your height, weight, diet, genetics. i am only 15 and i have 36 E breasts.
they might say u have big boobs because you do :s