My female rat snowflake is going on 2 years old (November 4th she will be 2) and she recently started dropping weight, walking in a circle, head tilting and falling over very easily. She also has had a really runny eye and that being said she lives alone because she kept beating up on the other ladies, and she hasn't been cleaning one side very well the past I'd say month so we've been giving her baths every week or so. I never thought anything of it because she's just always been a dirtier rat and I figured without a buddy she couldn't clean that side of her back. The side she couldn't clean was the runny, rough looking eye. After I saw her last night when she looked so bad I figured I should start looking for what was wrong. I found that it could be anything from an ear infection to a pituitary tumor. Has anyone had any experience with this sort of thing? We're trying to get up with a vet about it, but I wanted to see if anyone had any helpful advice. Thanks!