What I forgot about was the after-flu. You know, the week or two after the flu where, despite having kicked the virus, you still feel like horrible, like you've just been run over by a road train. You're tired, still a little sniffly and generally cantankerous.
The reason I forgot about the after-flu is that I haven't had to deal with it for a while. The last three years I've had a flu shot. I still got the flu, but it wasn't as bad, didn't last as long, and there was no after-flu. This year I didn't quite get around to getting a shot, next week always seemed like a convenient time. And then I got the flu last week, so now I have the after flu, and I'm really not enjoying it.
I'll be getting that flu shot. This week.