With the help of Biscuit's dad, we noticed that Biscuit is showing signs of allergies or a rash around his eyes. If you look closely, he has red lines and red skin around the outside corners of his eyes. His dad said he wasn't really exposed to grass much before, and Biscuit has been walking in my courtyard a lot so he may have some sort of grass allergy. I will continue to keep a close watch on it, and, if it gets worse, he will go to the vet for appropriate treatment. Poor Biskey.