hi all my son who is 8 and a half yrs old was born with a heart murmer. He attended our local outpatients clinic once a yr to be checked until he was 4. Our doctors then suggested he visit Our Lady s hospital for Sick Children to see a specialist and have tests as usually the hole in the heart (murmer) would have closed by itself but it hadn t. Anyway to make a long story short the doc s there were happy with him and said he should be fine, not to worry about it. and he was to go back for another checkup when he was 8. He hasn t been called yet. My worry is for the last 2-3 weeks every now and then he has been compaining with left sided chest pain , especially after excerising ie. running while playing. He also said that when the pain goes it feels cold inside his chest. And that he feels out of breath so soon after running. Is this something to worry about?? Sorry my Q, was so long!!!