For many of us, these attacks take the place of classic anxiety attacks. Have you ever suddenly had the feeling that you were an alien inside your own body? That you had access to the memories of the person you were inside of, but that person was not "you?" For those of us who deal with depersonalisation from time to time, it can best be explained as if we have woken up inside of a living being, rather than the usual feeling that we are that living being. Often described as feeling like an alien or a robot, it is as if a sudden separation has occurred between the conscious self and the physical self.