Iguana stunted growth?

[Darkbird]

The other iguana was rehomed to someone familiar with aggressive iguanas, so no he has been out of the picture for quite some time. She lost her tail because she escaped her cage and found a way outside and I think one of the cats tried to grab her because when we found her there was only the nub.

OK, that's good to hear. It might be a good idea to have a fecal done to check for parasites. Something she had before the injury may have become an issue now that she is hurt and stressed. Any vet should be able to do that if you give them a sample. And if you do decide to take her to a reptile vet make sure to bring a sample with you then as well.