The crappy scratchy throat thing from last night is becoming something more. About an hour before work ended, I started feeling headachey and dizzy. And it's been building.
Stopped at the drugstore and got Vitamin C, Echinacea, B12 + zinc. And some NyQuil. Took 10,000 mg of C, and triple-dosed on the Echinacea and B12.
Gonna go to bed early and try to get some sleep.