I am sorry for your loss of dear Pumpkin. I know a bit of what you are feeling. I lost Grey the cat suddenly to a tumor that burst in his bladder. I still can't shake this and beat myself up for what signs I missed and mainly for not insisting the doctor do an x-ray when I first took him to vet for being lethargic that fateful day. An electronic hug to and your family. Also a big electronic hug to Pumpkin. Watch over your family Pumpkin; they will meet you again over the Rainbow Bridge one day.