none of the present diagnostics used in the USA for dissociative disorders have anything about the usage of plural language (using words like "we") so you can pretty much consider it not related.

using the present diagnostics here in the USA there are only two dissociative disorders that take into consideration having alternate personalities...DID and OSDD... you can read the actual diagnostics criteria USA treatment providers now use in my link at the bottom of my post...

short version DID you have to have at least two very special kinds of alters that affect your whole life and OSDD is similar to DID except that it has less than marked discontinuity than DID.

the other dissociative disorders recognized in the USA...depersonalization\derealization disorder, Dissociative Amnesia, Unspecified Dissociative Disorder do not include having alternate personalities.

america is moving away from the multi axial diagnostic process so because of how the new diagnostic criteria is worded the same symptoms that you find in depersonalization/derealization disorder, dissociative Amnesia and Unspecified Dissociative Disorder are ....already.... included in the diagnostics for DID. therefore it eliminates the need for a person with DID to be diagnosed with 5 dissociative disorders. one covers it all now. treatment providers distinguish between them by following the diagnostic criteria...

what that means is if you have alters you get diagnosed with DID or OSDD

if you dont have alters but have memory problems\inability to recall important information you get diagnosed with dissociative amnesia.

if you dont have alters but have feelings of numbness, foggy minded, disconnected, feeling that things or you are not read (feelings not beliefs) then you get diagnosed with depersonalization derealization disorder.

see what I mean no need for 5 different dissociative diagnostics now on one person.

if anyone feels they may have a dissociative disorder the best thing to do is contact a treatment provider and tell them your concerns. if they have diagnosed you with something other than a dissociative disorder it just means your symptoms are better explained by the diagnosis they have labeled you. in this case you can talk with them and they will explain to you why you have been diagnosed the way you have been diagnosed. and if you still do not agree with them you can ask for a psychiatric evaluation for diagnostic purposes.