I get the feeling like I'm high on tons of drugs. I feel overly confident, full of energy, I have been known to study all day long without rest, I feel like I'm the most amazing person in the world...

Very euphoric pretty much. In a very unnatural way.

Very hard to sleep when I'm like that as well. Before meds I would walk back and forth in the living room for 4 hours straight in the middle of the night. So I pretty much get no sleep.

Some people get irritable, but I've found that's not how I experience mania.

Also pawn is right... You really do feel like GOD