Yesterday I noticed Phoebe's left eye wasn't normal. She has crustys above the eye and it seems a little wet below her eye. No substance is coming out of the eye that I can tell, just looks crusty on top & wet on the bottom. She allows me to touch her eye & rub the crustys off with no problem. She is also blinking that eye often. Other than that she has been acting completely fine: eating & drinking normally as well as staying active (AKA actively bullying her sister). Has anyone seen this in their piggy before? Any advice?