Norma keeps going

I wrote about a year ago that my cat Norma was getting older and more frail and that there would come a time soon when I would need to consider having her put to sleep. Despite my concerns at the time she has kept going, although now each week I notice that she is that little bit thinner and that she doesn't always seem to know where she is. I have been having thoughts of taking her to the vet more frequently but knowing when the time is right is hard. However, I think I have found a good indicator. Tonight I cooked her some white fish as a treat. It has always been her favourite and when it was steaming in the microwave in her younger days she would climb on top to get at it. Well, that is a bit beyond her but as soon as the smell wafted out she was up, pacing the floor and miaowing (rather loudly as she is deaf). As soon as it was down on the floor she pounced and ate the whole piece in 5 minutes. I will keep this as my indicator of her quality of life. When she is no longer interested in coley fillets then I will know that the quality of her life is no longer good.