yeah, really good questions! I've not heard of GID until now. But if the changes are being brought on by triggers, that is a clue (to me) that it is dissociation or alters or (?). Where, like you said, it's not so much that you are one or the other, but they are brought out and sometimes there's even a "neither". This is where therapists look for trauma in your life and soforth. Staying in the questions is good.