Running on something

I'm 90% positive I'm running off of some hidden reserve of energy. After getting back from three hours of roller blading, bounce housing, and climbing through a jungle gym (once in a speed run), I was still awake and active enough to do random dancing in my apartment. Then go get frozen yogurt. And I'm still running off of something. I'm going to crash so hard tomorrow, and I've got work tomorrow. I'll survive. I may be running off of the energy of wanting to do something. I want to swim, I want to play frisbee, I want to play volleyball. I want to do something active. I want to socialize. Yet I haven't, so I'm sitting here trying to find something productive to do and it's coming out in the oddest ways.