Thanks, Celeste. If I have to have a weird, incurable disease, I'd like it to be named "Impressive Syndrome."
I've looked into hyper- and hypokalemic periodic paralysis. It's unheard of for it to begin when my symptoms did, at age 43. Still, I don't rule it out. But there's just too much that doesn't fit--for example, the way I feel almost normal in the morning and have trouble in the evening. But I'm going to do some careful journaling of food and symptoms.
Abby