I didn't appreciate being jerked out of sleep by the fluttering heart, the racing thoughts, the cold sweat this morning. Wandered around the house for a bit, took a drink of water, then tried to settle me down to meditate for a bit. The heart kept racing, though, and the thoughts kept flooding through the cracks in my concentration. Finally dropped off at around three ish, only to be woken up again at five and six-thirty.
I've not slept a full night in a couple weeks, but this was the worst. Looks like I'm going to have to switch back to decaf.