I posted this somewhere else but didnt get many answers. I do not have DID. I did however dissociate in therapy a couple of weeks ago. My old therapist said I used to do it but I was never aware of it. This time my vision got blurry, my mouth was gaping open and I wasnt aware of what my therapist was saying. It was like I was semi aware. Then she said in a loud voice are you with me! I snapped back. My question is why does dissociation happen? I mean I am 42 and have no history of trauma that I am aware of.