
I'm so sorry for your loss, and feel for your cat too.
For the vet to say that cats (or dogs for that matter) dont grieve, is unbelievable.
They go through all the same emotions as we do, they certainly do grieve.
My little crossbreed was inconsolable when one of our bernese died.
Our bernese came to us when we'd had our crossbreed for 10 years, unfortunately our bernese died of bloat when she was 4, and our remaining dog was distraught. She was frantic as she was ill, and when we took her to the vets and didnt come back with her, she was devastated.
Didnt eat for weeks properly. I had to hand feed her.
To be honest this is what i did, and honestly you may not like what i say, but i comforted her, i cuddled her in, i talked to her. My neighbours said she used to howl when i wasnt in.. and she was terrible all the time for weeks, it seemed the more i consoled her the worse she was, until one day i almost shouted at her. Infact i did.....
I shouted and said, right thats enough, stop it.... i was so stern, i said its me and you now and I just made her get the old energy back that she once had. Taking her mind off it.... and rather than cuddling her, i gave her more rough play to give her a bit fighting spirit back.
It does sound really bizzare but she really did pull through it after that.
I'm not saying this would ever work for everyone, but it did for us, but obviously i knew her nature.
And please dont think i'm horrible, i loved her to bits.