點解會發生係我仔身上? I always ask this also. Hope that this share document can help you in deep heart. You are not the only one who have this problem. But my son is not due to DNA, but the final result is similar as living in the same disease "village".
(Sorry, I cannot type Chinese in this computer. )
Usually doctors will tell u the worst. Your child is only 7 months old, too soon to tell if it is really that bad. Just love, encourage and train him, like all mothers do. No one knows the future and you can only accept what God has prepared for you, and rely on god for the strength to overcome the challenges ahead. Pray for you