It's almost like all the stars, moons, and planets (and quite possibly the sun itself) all aligned with perfection in recent weeks. And then they all scurried off, in their own directions, immediately afterwards.
I'm talking adrenaline here, and how it all ran out (quite literally) on me this past week.
Apparently, my body has a knack for drawing on the last miniscule reservoir of the stuff when it's a do-or-die situation (or, in my case, a crazy 2+ weeks of nonstop activity). When all the crazy said activity came to a halt, so did my energy source.