It sounds like me when I'm hypo/manic. So awesome, so fearless, so hilarious (so obnoxious, lol). So... I don't think you're an irresponsible jerk, just sounds like you're heading up.

It reminds me of a time I went to a party with some of my ex-H's friends and their friends. So I knew maybe half the people there. I'm usually quite shy. But I was chumming it up with people I didn't even LIKE(!), loudly cracking jokes etc, pretty obnoxious, really. I TOTALLY would have gone up on a stage! (The very next day I crashed, and had to be dragged out to an event and wouldn't talk to anyone (like headphones, don't look at me, don't talk to me kind of thing). Yeah, people noticed and wondered what my deal was, because it was like night and day. It was the BP, not my personality.)

Part of what makes symptoms symptoms is that they are a departure from your usual personality.