Hello Sarah.
Yes, you should be worried. But DO NOT assume you have cancer. There are many ailments that have your symptoms. You need to see an ENT.(ear, nose and throat) Dr. immediately. Not a dentist, and Not a general doctor. It is very important to see an ENT. Express your concern and symptoms. Show him (tell) of all bumps if they are not visible. Time is a big factor. Try to get an appointment within a few days. You definately need to have this looked at! Any disease or ailment discovered early is much easier to treat. Good Luck and post back here. This is a great forum. But you are not a member until you have proof of cancer. We hope you do not join our club, but if you do we will roll out the red carpet for you. Sincerely, Petey
PS. If you have any more questions write them here tonight, or anytime. We are always here for you.