A doppelgänger haunting is that of a ghostly double of someone living or a spirit taking the form of someone living to cause trouble. Have you ever sworn you saw someone walk by just to find out they were in bed sound asleep? There are quite a few reports similar to this. Some say to see your own doppelgänger is an omen of something bad to come. Also, a Doppelgänger’s reflection will always look away. For example below:
There are some well known people who claim to have seen their doppelgänger including Abraham Lincoln & Queen Elizabeth the first. Both of them described their double to look pale and sickly.