right now you most likely will not find any factual articles on DID and where you are at. short version the USA just this past spring changed to a new standard of what is DID, dissociation,...different terminology, different testing guidelines, different scoring, different....

what that means is now everything you find on the internet, in books, magazines and such on the disorder is now outdated, invalidated.

my suggestion is you know you, you know how dissociation and DID affects you, and you seem to know this friend very well (otherwise you probably would not be considering disclosing your mental disorder to them) Because of all this you are the "expert" on how much, what about your problem you should disclose and how to go about doing so...

example an article on linewill include the word ---possession--- because of the new DSM 5 guidelines my wife may understand I dont mean ghosts and spirits if I use that term so I know I can use that term with her but I know my next door neighbor uses that term in reference to ghosts goblins and the like would take that term to mean something it doesnt so I used the term ...switched into an alter... when discussing it with a neighbor friend of mine.

only you know this friend well enough to come up with the generic, non technical terms for how DID and dissociation affects you.

so my suggestion is dont rely on other peoples words or outdated materials, sit down and write out what DID is to you, how it affects you and what you would like this friend to know about you.