I'm 14 and I noticed that the lower part of my left rib cage seems to curve inwards as it approaches the center of my chest. Also, my last or 2nd to the last left rib bulges out more than my right's. Is this normal? My right rib cage is totally fine..only my left. When I take a very deep breath you can really notice that my left rib cage is like lower that my right's because of the inward curve. Please help me!!! I'm really worried...I'm getting shy showing my body to other people because of this curve. 
by the way, i think it's not pectus excavatum because there is no curve in my sternum. The center of my chest is fine. Only the lower part of my left rib cage. Also, I haven't had any recent injuries
by the way, i think it's not pectus excavatum because there is no curve in my sternum. The center of my chest is fine. Only the lower part of my left rib cage. Also, I haven't had any recent injuries