That's the cutest puppy Becky. I've seen your avatar but I didn't know it was a real dog
It looks like a stuffed toy.
My cat was losing weight even though she was eating just fine so I brought her in for a checkup. The vet thought she felt a lump in her abdomen and did some x-rays. From what I understand the lymph glands in an older cat are prone to cancer. It showed up on the x-ray unfortunately. She gave her some prednisone (same stuff I take for my allergies sometimes) and the cat really did well for another 6 weeks. Then she got so uncomfortable that she couldn't jump up on anything anymore and could hardly climb upstairs. That's when I said enough was enough.
Her first symptom was weight loss though and some vomiting later on, really nothing else.
Kathleen