I'm 18 years old, male, in good physical shape, mentally sharp - everything seems good. However, it doesn't matter how much, or how little, I sleep; I'm ALWAYS tired. I get my recommended 8.5 hours, and throughout the day I am in a constant blur, always almost falling asleep. I yawn, no joke, every few seconds. My eyes water and burn because I am so sleepy. I don't know what to do, and I've had this problem for quite a few years now.

I eat regularly, drink what I thought was enough caffeine, and I think I get the nutrition I need. Also, my mattress is dandy, I know that isn't the problem.

But what could be the problem? This is draining me, I'm tired of being half there and half not wherever I go.

Any help will be greatly appreciated!!!