I also have all four wisdom teeth. Two of them are very tiny though. They gave me some headaches years ago, and a little fever, but it passed after few days. For each of them I got the same symptoms: headaches, fever, but no more than this. I took few aspirins and all went well. That's why I didn't have to take them out.
I've heard from other people they hurt a lot. I'm sorry for Beretta who says he's suffering because of them, and Nelo, on the other hand you seem to feel better now that they're not in your mouth anymore. You'll recover very soon, don't worry!