My son heart beats fast than every other child.. he has complain about any thing like tiredness etc.. he has this problem from his birth. Now he is 5 year old... everything seems normal so i was not much worried but one of my friend says tht its not normal and i should concern doctor.. just wanna ask is this a serious issue cause he has never been ill.. never complain nothing... its like normal for last 5 year..
He has never* complain about anythinv like tiredness