Life with dissociative identity disorder (DID) is often filled with self-doubt. People with DID doubt their memories and doubt themselves. It is especially difficult in the beginning of a DID diagnosis, when the urge to engage in denial is often the strongest. But the tendency towards self-doubt doesn’t stop there; it can continue for years. One cause of consistent self-doubt is related to a type of psychological abuse experienced by many with DID: gaslighting.