If I leave her [wet] food down in the kitchen, she'll have a bit, then go off and sleep somewhere all day and it'll dry out by teatime. Repeat for her evening meal. (She also has biscuits and water available all day)
Yet my highly scientific experiments have shown that if I put the same food near where she has gone to nap, she'll eat it all between snoozes. She just CBA to get up and go to the kitchen!
She doesn't seem any the worse for this, but obviously she is eating less than she should on any days the food is left in the kitchen so it's not ideal.
Any reason to be worried? She's 13 and in otherwise good health as far as I know. She has her annual jabs in a month or two so will get a vet once-over then as well.