I have a 20 month old Siamese cat named Cocoa. I took her to the vet 3 weeks ago because she couldn't stop throwing up. The vet took an x-ray and noticed a 1/4" round something in her stomach. He gave her fluids and sent her home. Since then she started eating again and stopped throwing up. But now she'll only lick the juice from wet food. She's drinking too. Her bones are starting to jut out. But her coat looks good. She has been sleeping all day and night. Is there anything I can do? The vet was really expensive. Please help!