I think GSH will be a miracle for you as long as what Michael said, you get the yeast problem under control. My guess is he is filled with it and needs major probiotics. You can get powder probiotic called Primal Defense and it works really well. Just mix it with some water and give it to your son with his bottle. Try this for a month and see if you can tell a difference. I think you will be pleasantly surprised. Also, Michael is right, you should test his stools. This can tell you a lot. Best of luck. It will get better!