im trying to figure it out too.. its not easy, atleast for me...
moments i have clear understanding and knowing, "hey there are others in here you douche quit ignoring us!" and other moments i have absolute denial, its impossible for me to have d.i.d. for there to be others and for me to be switching, kind of thing, like im making it all up for an excuse...
its difficult to wrap the mind around... talking with your T is i guess the best place to start... a safe place with someone safe and knowledgeable... or atleast willing to learn..
its a hidden disorder so it makes sense that it hide it self from the host to keep a sense of normality.. but its important to rule out other disorders so that we dont end up misdiagnosed... misdiagnoses suck

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i seem to have seamless switching... very fast...