My dad is home. They checked him out from head to toe and back, and kept asking him how old he is because he seemed so much younger. Arteries clean as a whistle. A brain that works like it should.
But the inner ear! That tiny little space in there. Evidently, some deposits/calcifications came loose and caused the vertigo and thus the nausea.
Whew. Big sigh and breath of relief.
I get to talk to him tomorrow, to get the story directly from him.
Meanwhile, I need to tend to my Crafty Girl who is in bed right here, right now, with suspected strep throat. Going to get the test in the morning...
Thank you all for being there. It definitely helps.