So I'm home, and resting, but the past few days have been more than a little stressful. It turns out that what I had was a hemiplegic migraine with aura, which is a fancy term for "we can't tell it from a stroke without lots of testing." Hemiplegic migraines are even listed as dangerous, which I learned while I was there as well. But, there's a serious upshot-I should have no lasting effects from the incident, which means I should be back working on this old crepe myrtle stave sometime next week.
Having had actual strokes with permanent damage, I couldn't tell the two apart. I just hope the new medication keeps them away.