i feel happy....i don't feel happy...i feel happy...?!?!

sometimes, it seems that i can be full of energy and do everything without sleeping for days. it's as if i've been taking large doses of Prozac everyday. actually, i'm not taking any!... i just feel somewhat happy for some reasons that i can't articulate. i'm not going insane, ok?!... i seem to have a newfound sense of optimism in life. although, sometimes, it feels like a phony kind of "positive" outlook. does that even make sense?...i'm not sure.