"Poor GP practise"

I have been taking my son to my GP for the past 3 months or so with a very bad cough and difficulty breathing. I saw all the doctors apart from one. they all said different things to me of what the cause was. Finally i took him back to see the only doctor in the surgery i had not seen and she ammidiatly referd him to my local hospital. with in an hour hed been checked and xray and finally was told he had a chest infection which my GP failed to pick up.