Did the doctor mention a TIA? I learned that term yesterday.
Winner! After all the tests, that's what they said happened. The key and most wonderful term here is the first letter, which stands for "Temporary". Evidently it's a small blood clot on the brain that goes away after a bit. Still don't know what brought it on, or how to avoid it in the future, but man, was that scary.
Anyhow, she's doing much better now, perfectly normal, and I might get to take her home tomorrow!
Thanks guys for the good thoughts, they certainly helped me if not her.