Thanks alisonhope,
I still don't know what's causing it, though I am managing to get out more. I see my neurologist next week for a routine migraine maintenance checkup; she's going to check it out then.
The blood work was for my Potassium levels. They turned out OK. If this is an electrolyte problem, it isn't the Na-K balance.
The bizarre dreams may have something to do with an SSRI which is losing its effectiveness. An SSRI that stops being effective is not new to me. I just never experienced bizarre dreams in the process before. I don't see my psychiatrist to try to do something about the SSRI until next month. It's the old shortage of doctors thing.
So I guess the only real change so far is that I'm going out more. I still don't know what's causing it but it's definitely there. I can tell whenever I try to do something that used to be fairly easy.
In the meantime, I stay alive.