MY CALICO CAT HAS NO APPETITE --- IT BEGAN WITH A VOMIT OF A MILKY WHITE FLUID

Then after 24 hours, she is not eating or drinking still. She defecates a liquid form waste. She then suddenly cries and a liquid comes out from her anal. What could be happening to her? Please help us. Thank you.

Hello!  I think this is one for your emergency vet.  She is likely making herself dehydrated and this may need to be addressed.

There are all sorts of reasons for diarrhoea of various kinds, if thats whats going on, but naking sure that she is medically stable may be the first priority.