Ian,
I have been watching your posts on multiple "health boards". You need to let this go. I know it is very frightening when you are "convinved" you are ill and you have every symptom. You have been to several doctors who are telling you that nothing is wrong or that you do not have oral cancer. Let go & live your life. Maybe you should talk to someone concerning obsessive compulsive disorder. It is real and you need to see a doctor for it but not an oncologist or ENT.You are going to make yourself crazy with this!!!An exam by an ENT is what you needed and its what you got.My friend who really did have cancer of the tonsil was diagnosed by an ENT, they know what they are looking for.I work for a dentist and I have heard him say millions of times"some people just have big tonsils", this could be you.Please try to relax about this.Like Gary said it could be many other things, it doesn't have to be cancer.Take care! Maureen