Ended up with a headache behind my right eye this morning pretty quickly after I came into work because I encountered some notes left by coworkers the night before that I didn't quite understand the point of. Because my coworkers said that the cats were 'very sick' and they appeared to be fine, and also that two of our animals in the store had been 'put on hold' when we're not supposed to put animals on hold.
So yah. Irritation this morning caused a headache, but also the stress building in the store due to issues in the grooming department didn't help.
But thankfully taking a Tylenol and Aleve helped the headache to disappear. So I didn't have to deal with it too long.