Flared ribs... does anyone else have this?

I do not have Pectus Excavatum.. My chest is normal. But both of my ribs flare out terribly at the tips and each side is uneven along the sides of the ribs. I'm a 14 year old girl and it is humiliating because whenever I wear a bathing suit people always ask me whats wrong with my ribs..... the flared ribs cause the area between the ribs to "bubble" out so it makes me look fat no matter how much i work out ... They hurt a lot when I sit in one place for too long, or if i lie on my stomach at all. does anyone else have this or know what I could do about it?