I have a 16 year old son who is having problems with swallowing his food, this has been going on for over a year now. We have been to the doctors on several occasions but he says there is nothing there. He was sent for a scan to see if there was anything in his throat but there was nothing, I am really worried, he only weighs 7 stone and looks ill, it is getting to the stage where he is only eating soft food and every mouthful he takes he has to drink with it, please can you help?