The left forearm started twitching about 10:15am, and kept doing it for a couple of hours, whenever it was more than a bit bent at the elbow. The tendons in the elbow started burning a little too. And throughout the day, the inside of my elbows on both arms have felt "sticky" - as if just below the skin, I've been sweating and internal bits are all tacky.
Know what I blame?
I'm starting to notice this sort of pattern whenever I take 400mg tablet at night, and last night, I had one for my neck (which had been mostly okay during Worldcon, but kicked off again straight away when I got back to work).
Evidently, it's bad for me.
I shall have to watch this more closely, I think.