And, to add to my post the cat will throw up small amounts of yellowish
fluids a couple times a day.

And, to add to my post the cat will throw up small amounts of yellowish
fluids a couple times a day.

Cats who do not eat are very sick. They must eat within 3 days or their
liver gets seriously damaged.
Cats who do not drink get dehydrated - this makes them lose their
sppetite also...
What is your vet saying? It is imperative that you get your elderly cat
to vet ASAP!
Camilla

The yellow bile can come if a pet doesn't eat  and the stomach remains
empty for quite awhile. Try stimulating your cat to eat. Sometimes the "
switch " will shut off and it's hard to get it started again. One cat  
wouldn't eat, but when  a little food was dabbed on its mouth   it started
to eat from the bowl ravenously, another wouldn't eat but when a couple of
tablespoons  of food was pureed and fed orally with a syringe, the "
switch" turned on and the cat started to eat  minutes afterward. If none
of these things work then ask your vet to prescribe Cyproheptadine. It's a
safe appetite stimulant.

I don't know if your " family member" is very  cat-oriented but I would
certainly question what happened while you were gone and how your cat
behaves around that family member now. I would also question if that lack
of appetite didn't occur while you were gone not just after you got back.

Something certainly happened in your absence. I would  certainly look to
that family member for some answers.