I've also noticed a correlation of my mood and the mess rating of my surroundings haha. I always feel much more at ease when things are picked up so if I start getting in a bad mood I'll clean at a fast pace to get the blood flowing while also getting the dopamine from the feeling of accomplishment. I'm not a "clean freak" by any means but I think its just the random clutter or "living mess" that makes things fee chaotic.