[Ashley V]

Chip had something like that one time but it was on his side. The vet did a needle biopsy thing and sent it to a lab then confirmed it was nothing. They said it was just a bunch of fatty tissues that bunched up from a vaccine. Has your baby had any vaccines lately?

Edit - sorry didn't read the entire thread. I see that you said she hasn't had recent vaccines. Guess I wasn't very helpful! I'm sure it's nothing serious, but I'd be patient and take her to the vet Monday and just make sure she's still eating okay and acting okay.