Thanks guys, and ok Scott you're off the hook for now.
Micronut, I'm with you. I was in a sustained state of low-level anxiety and fear for most of the day, not sure why. When we finally hit the sleeping bags that night, every time I closed my eyes and started falling asleep I found myself on-route again, pulling off loose blocks, falling. Then I'd snap wide awake in my bag, slowly drowse off, repeat. Like those dreams where you're on a skateboard, you hit a pebble that jams up your wheel, you pitch forward in the dream - and then bang, a shot of adrenaline makes you jump up in bed trying to keep your teeth off the asphalt.
Residual adrenaline I guess - couldn't shake it for a long time that night. Made for good if manic star watching.