Oh god, I have been having weird dreams. I am always myself, but a lot of times my husband is there too, and 50% of the time he is some horrible personality that is NOTHING like him in real life. Let me tell you, these dreams seem so real I feel that we are in a different dimension. But I've concluded that even if that is the case, my husband is a different guy in those dimensions, but in THIS reality, he is nice and I can trust him.
I've also had out of body experiences and other strange dreams in which I am myself, but a real passive, watered-down version of myself. I hate those.