Sometimes the muscles in my temple get hard and painful after chewing. Usually it passes after an hour or two. But it's now been doing it since around 8 am today and won't go away. It's not as bad as it was; earlier, it was bad enough I had to take pain relievers to get to sleep. But they're still not back to normal, and they still hurt.
It's especially vexing because I don't think I ate anything especially chewy yesterday.