What can be done about my huge protruding ribs? (photos)

I've always had a naturally tiny physique, but as I've reached my later teenage years, I'm now 17, my ribs haven't stopped growing, they are uneven, huge and desperately affecting my body confidenc. As well as physical issues, such as being unable to find clothes to fit, unable to lay on my front and my chest not seeming to expand as much as other peoples when I breathe! Can anything be done?