Hello just a quick question. about two months ago woke up to realize i had one enlarged tonsil. i've seen a ent who really isn't to concerned. as he said you would be able to tell if it was cancer. what couod cause this overnight? size is l+2 r +1?

It is not uncommon to have tonsils of different sizes, and it is quite possible that mouth breathing with your head to one side might contribute to the variation. You might also have some throat irritation from something you are doing. However, the important fact is that an ENT specialist who has examined you, told you not to worry about it. I would take that advice.