Help!!! very suddenly swollen cheek, no tooth problems or injuries... am i in danger??

i noticed about two hours ago a few lumps on the inside of my cheek suddenly swole up. i have no tooth aches or problems of any kind, and the lumps are high up, not near the teeth at all... i haven't bitten them or anything. they're not really painful but seem to be swelling at a pretty rapid rate which is what worries me a bit.





i'm also slightly nauseous, but not enough to actually vomit.





i think i have/am starting to get a sinus infection, but no glands in my neck are swollen or anything...





i did have a lot of caffeine today, way more than i have had in a long time, but i have never had an allergic reaction to it before.





any idea what could be causing this? i've been sick with a cold (possibly mono--one of my friends has that--haven't been checked out for it yet?) for the past couple days.





ANY help would be wonderful, i am a little worried and won't be able to sleep without knowing whether i should be worried.





please help! thanks!

Help!!! very suddenly swollen cheek, no tooth problems or injuries... am i in danger??
You may have an infection or an allergic reaction. If you have a high fever or bad head aches see a doctor right away. You can try gargling with a 50/50 mix of hydrogen peroxide and water , do not swallow this. Just swish in your mouth for a minute and spit it out. Do it two or three times a day to kill a bacteria infection. This will not help with an allergic reaction.