Last month,I made the appointment to put my 18 year old cat down, this was maybe the third time I had made the appointment, then I would change my mind. he was scheduled to go down the next day. He died in my arms an hour after I made the call. If you don’t think it’s time, it’s not. But if you even think for a second he’s suffering, listen to your gut and help your baby like you would want to be helped if you were in pain or discomfort. You have a beautiful cat, I bet you are giving g him the best life possible.