Manic Pixie Nightmare

Is there a such thing as temporary BPD? I feel manic lately. But not happy. Just sporadic... energetic and erratic. Talking a lot and too fast. Singing and dancing. 

But not happy.

There is no happiness behind it. And the crash goes deep. 

I don't think I have any kind of real mental issues. It's just a temporary phase that is taking too long to go away. 

Right?

Everyone gets highs and lows. It's human. It's normal. But I just haven't felt normal for a long time.