My bulldog is three almost four and recently she stopped using her back leg due to hip displacement. We took her to the vet and he said she's not in pain. But then she started to lose her appetite and now she's too skinny. Ribs and spine showing. She doesn't move to much either anymore but maybe when she gets energy she'll skoot herself but not too much before she falls. I'm thinking she might have cancer. But we need to put weight on her desperately today I have her some scrambled eggs for protein and some dog food but not much. What other protein sorces or food can I giver her to put some weight on her?