 [ Symptoms ] innocent heart murmur has started to give symptoms about 8 years ago i went to the gp with breathlessness following ecg is it was diagnosed as an innocent heart murmur i went back about 4 years ago with increased symptoms but they said that it was nothing over the last few years i have been having episodes of palpitations at least a few times a week until recently i had never fainted before but i have fainted 3 or 4 times alongside these palpitations is it worth going back to the gp i feel like i am going to be told its nothing again [ Disease ] it could be genetic if his parents are small or he could have a growth hormone deficiency the sooner the gets evaluated the better get his in to see a pediatric endocrinologist asap since he is 15 now growth hormone deficiencies must be treated before his growth plates close while he is still growing