Poor old Robbie is not his usual self these days. Several visits to the vet over the last couple of weeks have not really yielded any idea as to what ails him, other than it may be simply his old body running down. He is somewhere between 19 and 21, and most likely older rather than younger. He has always been a very busy and inquisitive cat, always very 'there'! But now he sleeps more and eats little.