I am not a doctor but I'm sure it is Pectus carinatum. Do some research on it. You will have a very very painful surgery preformed that is only necessary if it starts to affect your heart or lungs. In other words if those two organs are healthy then don't bother with the procedure. It is a cosmetic defect which I know is not fun to deal with but going through the that surgery can lead to way other worse things or even a fatal outcome. I am a women and I have the slightly. It does her especially when a soccer ball hits the chest. Mine doesn't sounds as bad as yours but it is getting worse. I personally would not want the procedure done.