The trance like state you describe happens to me quite a bit. I usually refer to it as going on auto pilot. I do this so often that I always assumed it was normal. I do most of my mundane tasks on auto pilot while I think or daydream. I've always been a daydreamer. I could sit on the bed and zone out for hours imagining all sorts of things. This trait is probably what fueled the DID. I must have started creating alter personalities in the process. I always thought trance states were normal. But what do I know? I'm on this forum cause I'm obviously crazy. Lol. Hope you find the answer you're looking for :-)