my cat is going to be 7 yrs old in May.she grooms herself as she has always done, no change seen. the hair loss is all over her body. She looks like someone took shears to her. She still has hair but it is short and thinning. she used to be huge and fluffy. it just happened all of the sudden. her appetite is good and she still plays. she just doesn't look healthy to me any more. thank you for your response.