Lulu stopped eating early January. Started vomiting. Began losing weight. Always drank plenty of water. Stayed hanging over the water bowl. Peeing inside the litter box, alot of times outside the box, then other times I would put her in the box to pee. Liver enzymes slightly elevated from first bloodwork. Shes eaten dry food all her life. My vet said "no good." He finally placed an E-tube for feeding and hydration. Been feeding Critical Nutrition diet. Doing well but still not eating on her on. Still drinking though. On pred, ax, cerenia and pepcid. Any thoughts?