5:30 PM: get off work, lift for the first time in a while.
7:00 PM: dinner with family.
8:00 PM: take temperature, 99.4 F. Anxious.
9:00 PM: take temperature, 100.4 F. Feverish. Get into bed.
10:00 PM: almost asleep. Then, jolt of energy. Very awake. No longer feverish.

WTF

I have no idea what happened and I feel completely fine now, although getting a little tired.

I have a weird sense that doing cleans or something for the first time... ever? overworked me a bit and dunked my immunity for a little while. Or maybe something related to allergies? Or food-related? I have no idea.

Or maybe my symptoms were purely psychosomatic, fever borne of anxiety and not the other way around. I felt immediately clear-headed when I got that jolt of energy, so it seems possible.

UPDATE:

11:00 AM: Feeling chilly. take temperature, 98.7 F. Hoping it stays there, will test again in the afternoon.

UPDATE:

2:00 PM: feeling okay, a little sleepy. take temperature, 99.4 F. Thinking it's just a cold, given the fever is so low, and I have no cough but do have a stuffy nose.