My kitten, Nova, has been having an eye problem. Her left eye is constantly watering to the point that it leaks out her eye and she's left with a wet spot all down her face. From what I can tell, everything else looks normal, just the watering. It's been going on for at least 5 days. She doesn't act like it is bothering her when I wipe her face. Does anyone have any idea on what might be causing this?