I'm sorry you lost your pet so suddenly.

We had one die at home. She had thyroid issues and just gave it up to heart failure at 18 yrs old. We buried her on our place.

The other cat, just went into distress suddenly and we never knew what happened. I kind of suspect she may have eaten a poisoned rat. She was an outside kitty. The vet put her down for us and we had her cremated.