Abnormally high tolerance for caffeine...?!

Abnormally high tolerance for caffeine...?

I'm a college student who has serious time management issues. So, I'm always up late doing papers last minute (haha) and I'm always looking for ways to actually stay awake. I try drinking coffee, but it doesn't do anything for me. I mostly just drink it for the taste. I once had like, 4 cups in one sitting and if anything, I was sleepy. I also drink Red Bull for the taste (which I actually like a lot, strangely.) My friends think I'm out of my mind because one of them makes them bounce off the walls, but I can have two and be fine. I also tried one of the 'Monster' drinks, which didn't really do anything except give me a migraine. Does anyone else have a really high tolerance for caffeine? I just think it's weird...lol!

I know some people are able to metabolize caffeine faster then others. I on the other hand will have two cups and turn into a neat freak trying to find something to do.