Dizzy with very sore throat, could i have mono?

you need to go to the doctor now. A fever that high is very dangerous. It could be mono but the only way to find it out is to get a test done. I had mono and I never had a headache, I just felt really tired and achy all over. The thing with mono is that it attacks your immune system until you are very weak, and then it gets bad. I was sick with mono for probably a week before I realized it wasn't just a cold. GO to the doctor. The sooner you start resting the sooner you will get better.