I need help figuring out on a failing kitten. She was a rescue at 1lb2oz. Vetted for uri, recovered, gained weight, normal on activity and eating. Took her in for Spay and first vaccines at 2lb 4oz this last Thursday. Came home lethargic but didn't worry until day of diarrhea and no appetite continued. Took to emergency vet Saturday and Sunday. Both days they hydrated and saw no concerns with surgery (no fever, redness at surgery site). Just thought she took longer to bounce back. Today minimal appetite and mostly lethargic. Going back to vet tomorrow but does anyone have any ideas. Vets tell me she will come around, I'm not seeing that! Anyone had a kitten take four or more days to recover?