I my 12y dd is in y8 at school and everyone in her class has proper breasts and padded bras. She has breast buds and a small bit of breast tissue, I have got her cotton non-wired non-padded bras from m&s. However if she hits her chest it really pains her and I think she needs more protection??? She is really frustrated at being the last one in her class to develop. Suggestions for what I can do please??? ????