I am not really a cat person and need advice. Our wee tabby appeared at our back door 7 years ago and has stayed ever since. We think she was about 3 so maybe 9 or 10 now. She has stopped eating for 2 days and has just curled up on the sofa and can hardly lift her head. She has started to smell very bad. We think she is dying of natural causes. Should we take her to the vet to perhaps get put down or should we let her literally curl up and die in peace?