Does anyone else have this? I'm late 40's. And depending on the mirror I can look pretty good for my age or utterly awful. It means I have no idea how other people see me. Do they see me as a woman ageing gracefully or a complete Chrone?
Which mirror to I believe? The one mirror in one room in my house in which I look pretty great? Or everyone other mirror in the world in which I look like a worn out, melting face hag? Which is right?! 
But seriously, do other people have this? I mentioned this to a male friend and he just looked at me really oddly. I thought he would say, 'yes! I have this too!'