DOCTORS!!! i need answers!! anyone actually?

I was born a premature baby by about a month, no serious birth defects just my lungs weren't fully developed. To say the least I have a giant hole/ dent in my chest. I have no trouble breathing or anything, not even in athletics. I was just wondering could there still be anything wrong, and will the I grow out of the hole? By the way I am also 14 if that helps.