<human>: Summarize the given text in a few sentences.

I have a problem of being completely exhausted during school (due to limited sleep). It gets to the point of me dozing off in class and missing important info. So I make the wonderful decision to buy myself a Red Bull before school and drink it. The deed was done and things seemed pretty good for the first hour. I felt awake and lively. Then shit got bad. While sitting in my second period class MY head started to hurt. Then I got REALLY hot. I am talking about feeling like I had a bit of a fever. I started to sweat and I was getting worried. I asked my friend to feel my forehead to be sure and he confirmed that I was SUPER HOT. The head continues to pound worse and worse. Then my heart feels all weird. It felt like it was beating too fast and almost skipping a few beats. Minor chest pains were even felt once. All of this lasted to the end of the class and then suddenly ended. I was just left with a headache. So now I am left paranoid that I am going to die in my sleep. YAY! Also does anybody know why this happened?
<bot>: I drank a Red Bull and it gave me a slight fever, a headache and a scary fast heart. I am now left with the headache and the paranoia of impending death.