Is this fatigue?

I woke up this morning after 8 hours of sleep at Station 2 last night. There was only one call in the middle of the night that Station 3 went on, so my rest was mostly uninterrupted. Yet today I've had trouble keeping my eyelids open. I was at Station 2 for the day, on Fast Attack. What a laugh. Should call it Slow Attack in my case! (Fast Attack is the guy on the end of the hose.) Thankfully, no calls for us. I can't believe my fortune. Of course, in my business that cannot last and there will come a time when I cannot reasonably expect to keep up my regular duties. I don't want to be a liability on the fireground.

Anyway, I did a workout this afternoon. Her name is Cindy. Cindy involves 20 minutes of 5 pullups, 10 pushups, and 15 air squats. I did 17 rounds plus one pullup. My record is 20 rounds, pre-cancer. So 17 is not all that bad. But I was gassed at the end (you're supposed to be at the end of a CrossFit workout, regardless of whether you're on chemo or not). Before the workout I was fatigued but don't think I could have fallen asleep. Now I'm exhausted AND I feel ready for a good night's sleep.