A reader asked..

My 16-year-old dog had probably a couple of strokes. She has now mobility problems, she sometimes moves in circles, she cannot focus, she has difficulty in eating etc. She is disorientated but i cannot tell if she suffers. I cannot bear the idea of putting her down, though it will probably come to that. The vet said she might get a bit better, though she is not very optimistic. In any case she is old and lived a good life with us… Any advice of when is the right moment? Do I keep her in life only because i do not want her to die?