I didn't read all the posts, so if I am repeating, I am sorry.
I had HUGE tonsils. I had recurrent strep, scarletina, and scarlet fever until I was 15 and FINALLY my dad told the doctor to send me to an ENT or he was taking me to a hospital. The ENT said my tonsils were very large to begin with and ended up pretty scarred. I had them out at 15. I never had strep throat or any throat problems since.
In addition to my huge tonsils

I also have sinus problems. I get horrid sinus headaches, even when I am not "stuffy" or have a runny nose. Sometimes I know they are draining, but more often than not, I don't. The only way I end up realizing it is a sinus headache is I bend over to pick something up and WHAM!! the pain gets worse.
I would go see the ENT. He may have sinus problems. I am actually nursing a sinus headache tonight and have no other symptoms....I have to call my doctor tomorrow since this is my 3rd in a week and I think I may have sinusitis AGAIN.
Don't worry too much until you see the ENT. Good luck and I hope all is well.