I have pectus excavatum--a small sunken dent in the middle of my chest around my sternum. It's about 1.5 inches deep and 4 inches long. I've always been a bit self-conscious about it but didn't think too much about it affecting my running. I've recently read on some medical sites on the internet that it can put pressure on the heart and lead to reduced cardiac output and in some cases displace the heart causing problems. I've seen pictures of other cases on the internet and mine doesn't look nearly as severe but still I'm starting to worry a bit. Especially, as I get more fit and my heart gets larger I'm wondering if this will cause problems.
Any other runners have this? What have your experiences been? I've talked to a regular doctor and of course he doesn't think it's a big deal (other than cosmetics) but I think he doesn't really know much about it and especially the link with exercise.