my cat casper is 13 years old. within the last three weeks he has not been eating or drinking. we gave him fluids through a sub q thing that the vet gave us. but we have run out and do not have the money to buy another bag. he cant walk straight and is skin and bones. he is refusing to eat or drink. i am at a complete loss and dont know what to do to save my cat. if anyone has any ideas i would love to hear them! please please please.