i wonder if someone can help with my cat problem.he is a male who has been spayed. we have had him 13 years but as he was a stray we are not sure of his true age but we think he may be about 18. obviously he is getting old and with that he may be having problems the same as an old person does. he has started pooing on the lounge carpet and also on a rug in the bedroom. i think he knows he has done wrong as i shout at him,but i dont think he can help it. we moved house 4 months ago but i dont think thats the problem as he has settled in very well. he is on tablets for kidney and thyroid problems and he has just finished a course of antibiotics for an upper respatory infection.