Jen, Buffy and Schnaggles have started putting themselves to bed at night ... on the couch and not their room but they are at that stage of managing their own routines a bit more. They also WANT to go outside instead of being asked nicely

Like Aly said, I'd keep an eye on her and see the vet if you see something wrong with her physically.

How about some more pics so we can check her out for ourselves?