Please help Maddy Rose get well as she's a very sick girl

Our 10 year old cat Maddy rose has become unwell and has been at the Vet's since Sunday 16th. She's having many tests to try to find out what is making her so unwell. She can't walk very well as her back paws are swollen and her blood was thick and dark. She has been on a dip for fluilds and pain. The vet bills are already $3000.00+ which will increase as we get to know whats going on with her. she has been a part of our family since she was 7 weeks old and our 3 Children are all hoping she can recover from what ever has made her this ill. I have fallen on hard times lately and anything small that you can spare would help us get Maddy Rose back to good health.

Thanks for your time

UPDATE: Maddy rose has been home for a few day but had to stay over night at the Vets due to not eating or drinking. She came home again last night 26th but still unsure what's wrong ever after 3-4 tests in which are costing between $200-400 each. If she keeps eating & drinking with all her meds we are praying for her to recover.

Thank you for Donating.