I'm very sorry for your son. My boys have seen many friends in the locker rooms at school with pectus. Most go undiagnosed or untreated. Their very best friend has flared ribs which is part of pectus. One of my sons was worse than the other since it was over his heart more, took longer to correct. I don't understand pediatricians that say "its nothing".
It is a very, very, sad thing for a child/adult to live with, especially when young. My heart aches for kids who have it.
I really do hate the medical community. I know I need it, but at times I really hate it. I truly do embrace alternative medicine, in every aspect. I have more stories like the above one, that are amazing. Now I am just waiting for God to show me something for my pn.