The fewer photos of yourself you see, the more your mirror image becomes your only picture of you. And the more that's the case, the less likely you are to like photos of yourself - and it's nothing to do with being unphotogenic at all. The problem is - we're not symmetrical. Your mirror image looks different to how everyone else sees you, whilst it's the image of you that's the most imprinted on your brain. So, you see a photo and everyone else looks fine, but you look somehow 'wrong'.