did some research i really hope ur daydreaming or just mentally ill… can be the ghost of a living person or any other sort of physical double.Doppelgangers are often malicious or a bad omen, and they can haunt their earthly counterparts.Seeing one’s own doppelganger or the doppelganger of a friend or relative is considered very bad luck, often heralding death or serious illness of the doppelganger’s original.