Thursday, I went down to get my measles vaccination re-upped; as far as I knew I'd been vaccinated as a child, but that was long enough ago that the immunity might have worn off. I did have a bit of a cough, but thought nothing much of it.
Then, Friday, I went down to Des Moines for the Des Moines Science Fiction Society meeting. By the time we broke up, I was dragging, and when I got home, I took my temperature. Reading the thermometer (101 degrees Fahrenheit) I said "Bed's the place for me!"
Today I'm still drug-out, but not as badly as yesterday, and my temperature is down but I'm not out of the woods yet.