Our cat Purr-Purr is about 9 years old. He is a normal cat through and through. Recently he has been showing signs of odd behavior. About a week or so ago he began urinating on my son's backpack. And then once without warning he defacated in the kitchen. He has been urinating more and more on the rugs, coats... anything left in the floor. And now he is showing signs of becoming very withdrawn and at times even non-responsive to our calls. For the past few days he hasn't had any appetite at all and has sleeps constantly. He has always used his litter box, had a healthy appetite and is a very loved and cared for cat. Please, can anyone help? :confused: