What Is The Treatment For Throat Cancer?

Dear Doctor, i am an 18 year old female. I do not smoke ciggaretts, however i occasionally smoke black and mild cigars.i smoked my first one back in november ( about 4 months ago) but i didnt smoke them a lot until a couple of months ago. not every day. maybe 2-5 a week. and not every week. i do inhale them though. ive recently decided im not going to smoke them any more because im terrified i have developed throat cancer. ive had a very sore throat the past few days. and ive been getting headaches. my neck is very stiff and sore. my glands are swollen. i went to the doctor and she said i possibly have a sinus infection and put me on an antibiotic, im hoping this is what i have. my good friend also has mono, she said i could possibly have that, but it is too early to tell. what i am wondering is since i do not smoke very often, is it possible i have throat cancer? or another type of cancer?