Stands for Disassociative Identity Disorder (previously called Multiple Personality Disorder), is a disassociative disorder relating to identity :NOWAY:.
Ok seriously, DID is catergorized by:
Essentially there are multiple people controlling the same body, with different identities, memories, and maybe slightly different personalities.
Usually only one identity (called alter) is controlling the body at a time (called fronting), however multiple alters can be fronting at once, or even none. For us, more than two fronting at once kinda hurts, so we usually only do a max of two.
Most of what you heard about DID is likely wrong. Like, people with DID (called systems) don't have "evil alters," persecutors do exist, but they mainly harm the system itself, not other people.
Basically everything other than multiple identities and amnesia is different between systems, including the severity of the identities and amnesia (you can have 2 identities or over 100, and slight amnesia or pure blackouts). There are common threads, but everything can change.
Feel free to ask any questions! Idk how you would do that, but uhh, find some way to contact me if you have a quesion.