my 9 month old ds2 has severe reflux and other tummy problems that are being investigated at the moment. He has 5 teeth and i have noticed that one of his big teeth is discoloured, sort of grey? Icant speak to a doctor until tomorrow, could this be due to his reflux? I can only find info on decay in older little ones from reflux. Any ideas?? He hasnt had a knock or anything on his mouth either..