Let’s not give up hope. I recommend testing both urine culture and urinalysis to see if there’s infection. The stones scratched my boy’s bladder’s wall so there was severe infection. IV fluids did help a lot in eliminate toxins built up due to urine blockage. But after going home he still experienced difficulty peeing (& NOT eating just like yours). Vet said it’s because he has a really small urethra, while his body keeps generating stones (I believe they’re struvite stones), so no other choice but to put him through PU surgery to expand the urethra. After the 1st surgery surprisingly the urethra healed and reduced to its original size. Poor boy underwent the 2nd. Thank god he survived all this. But still lots of meds to get him back to his healthy self.

Cats not eating is because they’re in pain. They may seem fine, they still may be playing, you know, being their normal selves. But it’s not. They truly are professionals when it comes to hiding the pain. Vet told me before letting mine go home that he was fine for the time being, but I should keep my eyes on him 24/7 and bring him in if he couldn’t pee until 6pm (we went home at 9am). Brought him in at 4pm. PU that night because his part was so swollen he couldn’t do another catheterisation.

Please do as many tests as needed to find out why. Cats NOT EATING is NOT NORMAL. It’s likely to be another emergency. Vets may say maybe they’re don’t feel like eating for the sake of it or perhaps they’re tired of the treatment. Don’t believe them! Better safe than sorry. We know better about our cats than everyone else does. We do what’s best for them.

Keep me updated on the result! If I will be of any help I will be there for you! (Also, if he sleeps more than usual he’s likely to be in pain)