Sorry for the delay in answering this post. I had remembered seeing an excellent post about imitative DID recently on tumblr and had hoped to cite it, but now of course I need it I can’t find it again. *sigh*

Anyway, what I know of imitative DID is that it is another disorder with symptoms that mimic DID. Generally BPD, or complex PTSD. 

That’s nowhere near the same thing as sharing a headspace with another person.

I’d welcome anybody who has some good cited sources about exactly what constitutes ‘immitative DID’  so I’m taking less of a shot in the dark here.