Deep inside this flame, I know it's true

For some reason, usually when I have a three-day weekend, I spend the third day with a killer headache. Take now, for instance. It finally occurred to me today why this is:

I just spent almost a full three days with my pets.

As I'm allergic to my pets and usually have nasty sinus headaches from said allergies, the headache on the third day would make sense. Bah. Something to test on my next prolonged time-off.

or maybe my body just hates me. I've suspected that for years.