Explains that

I’m sick. My throat hurts, and my nose is running.

So of course I’m getting ready to go to the gym. Hey, it’s above the neck; if I was feeling sickness in my chest and lungs, I’d lay off the running, I swear! But since it’s confined to my head, I see no reason to stay at home, feeling sorry for myself and drinking too much coffee (which I’ll admit is unrelated to anything, but you know that’s what I’d be doing).