Thanks for the encouragement, everybody. I appreciate it.
This morning's update: Last night, Butter stayed pretty much motionless, remaining in the same spot (moved forward and back about 6 inches, is all), but it was a pretty cozy spot, as I have a ceramic element beaming down broadside on his bin to get the cool end up into the 70s, and he pretty much kept his body against it. He layed with his chin mostly level instead of his head pointing strait up as it had been Tues/Wed. His mouth was a little bit open, like he was doing a bad job as a ventriloquist (if that makes visual sense).
Whereas yesterday, I was able to administer his medicine all by myself, albeit a bit clumsy, today, I needed the whole family. Butter writhed and wiggled and put up pretty good resistance. Bronwyn (wifey) held the wiggly parts, and Cooper (son) did a great job tending to the q-tip shaft (I snipped off the fuzzy ends) after I had the syringe in his mouth. All the medicine went down the hatch, and Butter is, at least for the moment, indignantly searching for an escape route from the bin.
Oh yeah... and his eyes have cleared, so I expect a shed in the next day or two, which I think will ease his stress a bit, too.
I'll take all this as progress. Thanks for following along!