Btw, I did have another Persian who passed on from heart failure, only I did not even know she had a failing heart. Bella was fine all day and then laid on my bed and was breathing funny- she was very lethargic. She very peacefully passed on when I was driving to the emergency vet. Same thing...
I have a Persian male kitty who is the same color as your boy Tabby.....so cute btw! I worship every hair on my boy and have had a similiar anxiety about his failing heart. The medication he takes has helped his energy come back, he seems so happy. There are days when he coughs a lot, at which...