(Cape Coral, Fl.)
We have a 13yr. old Siamese male that started abnormal hair loss about 2-3 months ago and getting worse as time passes. He also does not clean himself anymore. We also have 3 other cats, all male (The Siamese is the Alpha cat & very aloof), and two dogs. We do not have a flea problem. What would be a cause for the sudden heavy shedding.