Casseroles hospitalization

We started fostering Cass back in October of last year. We turned in foster failures and added her to our family. Since then she has had two tplo surgeries, a root canal, now a mystery illness that nobody can detect. She’s spent a week spending the day being hospitalized at the vet and when Sunday hit she was real sick so we took her to the emergency. Her bloodwork was very high, she was extremely lethargic and very hydrated. They suggested leaving her over night at emergency to run tests, keep her on fluids and make sure she’s okay. With that being said we are in extreme debt and our struggling to do what it takes to save our baby. And need all the help we can get! She doesn’t deserve any of this!