My cat is sick please help.

I have an old cat about the age of 13. He has always been a very small cat that didn't eat very much and recently he has stopped eating, an occasional nibble but doesn't eat alot nor does he drink water or his favourite milk. But even though he has stopped eating his appearance is very bloated and exteremly rounded, which is odd as he has always been very small and thin.
He doesn't meow, he doesn't walk around or go outside(and he was a very energetic and out doors type cat) he just stays inside and sits.

 

he needs to see a vet....did he ever get his feline leuk vaccine?
He really needs to have a checkup and some bloodwork done BEFORE you lose him.

 

I agree, it would be best to take him to a Vet. He is acting like he doesn't feel well. A Vet would be the best person to diagnose the problem.

 

Hi. Yes, I agree. He sounds like he is not well at all. Please take him to a vet right away. Please keep us posted. I wish him all the best.

 

Yea, agreed too with seeing a vet, he may need urgent attention, especially because of his age too, hope it all is OK, let us know.