I read it, too. I’m so sorry. Losing a pet is horrible. 
This seems to be untrue. Food sharing seems crucial to me - a pregnant cat has a more difficult time hunting when it’s weighed down with nearly finished offspring, and has trouble leaving the nest to hunt if it has kittens to watch.
Thank you everybody. Yes, my dear boy didn’t survive. It was now a week ago that I was taking him to the first animal hospital, semi comatose. I did go to visit him the next night, and spent most of the time talking with the vet and deciding to move him to a bigger hospital with more advanced resources but further away. Only then did I get him, and he was conscious but not that with it, and not looking at me or talking as he usually did, and clearly not doing well, so I took off right away to drive him to the further vet. I got to pet him a little bit at the intake exam there, which was rushed because he was starting to have shaking or seizures apparently due to low potassium levels, and they whisked him away. A little while later I got to see him in the back, in a cage and with a collar on, and I think he was unhappy and miserable but he also didn’t seem fully aware so it’s hard to tell. Early the next morning they called and said his heart was suddenly failing and we chose euthanasia as quickly as possible, which I wasn’t there for, as it was well more than an hour away. They said he wasn’t very conscious.
I’m still a mess, I keep breaking down crying when I think of him. It always hurts so bad. I always sign up again, too, because it is so wonderful sharing life with them. But I’m sobbing now.
I lost one to diabetes, too. It’s impossible to stop that downward cascade once it begins. My story is very similar to yours, rushing to the specialist from our regular vet, etc., but it was too late to do any good. Heartbreaking. I’m sorry you’re going through it now. I know there isn’t anything I can say that will help, but damn, I know how you’re feeling. 
I had exactly the same experience, rushing my diabetic kitty to the vet then transferring her to the more advanced hospital for ICU care. The hardest part was deciding when to let go. The vets were saying it could take weeks for her to turn around but it would likely keep happening. I gave her 24 hours and her labs were worse and I probably should have let her go then but it was too hard so I gave her one day more. At that point she really hadn’t eaten for three days but I keep wondering if I waited too long or not long enough. I did get to hold her when they euthanized her and I hope she knows I was doing what I thought was best. I honestly don’t know how people can keep their pets in ICU for weeks. The stress is terrible, not to mention the cost. At about $1500 daily you can easily go into five figures and then you feel even more guilty for worrying about money when your pet is sick. I’m clearly still having trouble dealing with the loss.
This is all just to say I’m really sorry about your cat and I do understand how hard it is.
I’m so sorry for your loss!
I’m sorry for your loss, Napier. I’m sure you were a comfort to him.
Aww, very sorry about losing your loved one.