Teaching is truly an all or nothing job. There's not the chance to work some, take a break, and work some more. I have to be THERE for students all the time. At least all of the time that I'm physically present. So I left at lunch.
For the classes that I was there, I started with a bit of a spiel. "I've been sick. I'm not fully well yet, just listen to my voice. But you still have so much to learn this year. It's important for me to make sure you can learn the material, but I need your help. We have to work together."
One class really responded. They shaped up, paid attention, asked questions, got the work done. It almost makes me wish I was sick more often.
But then another class reacted with the opposite. Same old antics. And me without the energy to manage. Thankfully, I'd kept the office notified about my health, so was able to call for some backup. I hate sending anyone out of the classroom, but, man, today it was worth it.