My 2 year old cat who is indoor/outdoor cat suddenly stopped eating. She ate yesterday like a monster, and was playful and nothing wrong with her , last time she ate was at 3 A.M. Since then she refused to eat everything(even tuna). So it has been 19 hours since she ate anything the last time. She only drank small amount of water. She has been sleeping since yesterday. What could have happened to my cat? only vet at my town has a vacation and wont come until Tuesday. What should I do? I read that fat starts to accumulate on the liver after 24 hours of not eating .. how accurate is that? What would happen if she refuses to eat until Tuesday (about 55 hours since the last time she ate?) I am really worried about her and would like to know what happened to her and what should I do from your experience