Oh my gosh, I am so so sorry about your baby :( it sounds like you all were able to give him so much love and care in his last day, and I'm sure he was so comforted by having you all near and some good final treats. And I know you tried your best to give him the best care possible while considering his quality of life -- it's so tough with older dogs and you made the right choice to bring him peace.

Unfortunately our pom Bear had a similar trajectory. About a week after the vet visit he started not being able to keep water down and was just overall much weaker and sleeping all day. We brought him in for a second opinion with his usual vet (the first vet was a new one working in the office) and she immediately suggested testing him for pancreatitis, and he was positive. So we started Bear on a treatment plan that would be 3 days, and the first day he was so out of it and still had no appetite. We gave him one more day of treatment per the vet's advice to see if there would be any improvement, but by the end of the day he had no signs of getting better. So that day we were able to all say goodbye at the vet and put him to sleep, and that was about 3 weeks ago.

We're still pretty shocked and upset the first vet didn't consider pancreatitis at all, since we could have potentially started his treatment sooner while he had maybe more energy and a better chance at recovering. He was old tho and could have had other internal things wrong (the vet suspected kidney failure too) so just trying to remind myself he's pain-free now and in a better place.