hi there, my 15 month old son has been having regular loose, sour smelling stools for the past couple of months. He's otherwise really well, gaining weight, happy, playful and excellent appetite. He had a stool taken last week which came back all clear for any infections etc. The GP is not too concerned as he is happy and well. I have cut out cows milk and yogurts which seemed to make a slight difference. the runny/loose stools are not every time he has a bowel movement, but are quite regular and always sour smelling. Also hes been cutting his back teeth and now his incissors for past couple of months, could it just be because hes teething?Thank you in advance