Tony
Hi, if this helps I am a 45 year old male who was born with a heart murmer. I am in good shape, I work out in a gym and have 2 healthy kids and my cardioligists say they don't think the murmer will hurt me in any way. When I was a kid ( a long time ago) they were very worried but times are different now so I would insist on seeing a specialist ASAP so you can get a clear idea of what you may need to do. Good luck.