I second what supanova said. Big time.
Also for me, when manic, I get overly optimistic about EVERYTHING. There's nothing bad and there's nothing that can stand in my way.
I also start coming up with a bunch of plans and a whole bunch of things I want to do, and as I said before, I feel like nothing can stand in my way.

Then with that impatience that supanova was talking about, comes the irritability and then everything tips from extraordinarily wonderful to really really ugly.

At least for me it does.