Thanks all for the advice.

Nanci's especially is reassuring.
Well, he seems to be doing well. Apparently he now weighs 21 grams (when the hey did that happen??). No regurges, happily (as far as I know). I suppose he should move up to the next food level soon (2 pinkies), but the size of the lump from just 1, I'll admit, freaks me out. Of course, the size of the lump of 2 pieces of an average pinky was similarly disturbing. And, I know the day after lump size would be a good rule of thumb, but the little guy's always hiding the day after, and I'm afraid to stress him out by digging him up or detangling him from his beloved tree.
Somewhat off topic:
Ever have one of those disturbing dreams that feels exactly like a slightly sleepy day, where nothing out of place happens and everything is completely normal except the one thing you've been dreading happens? And there is
nothing to tip you off that it's a dream, except you slowly find yourself in bed, which is still perfectly plausible? And you feel damned sure it was a dream, but ...what if? And why not? So that happened to me with the regurge.
