Turned over in bed and got the worst vertigo I've ever experienced without the aid of playground equipment. Turned back and it did it again, but worse. Had to wake barakta and get her to grab the bin while I kept my head extremely still.
And then it stopped. No head movement seems to reproduce it. Autonomic nervous system now hates me (went hot and dripping with sweat, now tired and cold), but seem otherwise okay.
WTF? This had better not be BPPV. I've got mild snot, which I take to be early-season hayfever, but ears seem okay. COVID test in progress negative.