I have days when I feel old, dumpy and fat. Then I have days where I feel young and "with it". I tend to stay home more then I used to so I'm sure that has something to do with it. Why "primp" when nobody but the cats are gonna see you?!
But really, I know what you mean. Just carrying my cane can make me feel older. But then I'll see someone younger than me with a cane and I don't think any less of them.....I even admire that they can "look so good" with a walking device.
It pretty much depends on my mood as to how I view myself any given day. But one person's offhanded comment (even well intentioned ones) can put a damper on my whole day.