Thanks for the posts guys. It's so weird; it's not like anything in these previous posts. I called my vet, since I heard it was possible that it was a symptom of this food recall.They couldn't really give me anything substantial without seeing her. She isn't acting sick at all though, so I think I'm going to wait a few days before scheduling an appointment.
She hasn't eaten anything different and she doesn't go outside much so that pretty much rules out an allergy. I work in a body shop and would consider cemicals if it didn't show up over the weekend.
If it does turn out to be something, I'll post for the next person who comes across this.