M
It's not a fun thing to watch for sure. Hurts not seeing Captain at his best, I can imagine how you feel.A little late to the party - but that is good new. I am currently watch my big dog swirl the drain. No pain that I am aware of, but can't hear, can't see and I think dementia has set in. I don't think there is much time remaining. She has been a great dog.
Was it "bloat" or something else?
If you don't have pet insurance, might be worth looking into.