@Razz9Id: Right, but when you are humming and talking unintelligible words, then definitely you are not talking in some secret phone they cannot see!!

@Lost_in_the_woods: That was very informative, and I think you described it very well and accurately. It happens sometimes when I face an encounter that I didn't like how it turned. It depends on the encounter, if I place a weight on it then I would be more upset and involved in self-talking. And you are right, it's not really dissociation (zoning out is more accurate I think), and that's why I used words like "in a sense" and "partial" when I used the word dissociation. Sometimes, I will be aware in the beginning when I have a self-talk as a normal self-talk everyone does I guess, but if I get upset and angry as the scenarios progress, I lose the sense of time, and I lose control of my mind, at least temporarily. Sometimes, the only way to stop self-talking is to go out or bike to release the negative energy in my body.

@avlady: I walked while asleep only once as far as I know. It happened to me while I was 7 or 8 years old. I think my mother knew I was asleep because otherwise she wouldn't mention it. I woke up, went to the kitchen, drank some water, talked to her a little, and went back to sleep. I'm not sure if she told me to go to bed and I obeyed. We haven't discussed it. But yes, this incident freaks me out that I would go out while asleep and do things while unaware.

@justafriend306: Actually, I do that, too, but it's less frequent. I play a potential conversation in my mind, and play the roles. I remember doing it once because I wanted to ask a girl I liked out, and I was nervous and anxious about how I would do that. I ended up not doing it

@prefabsprout: This is true. Children talk to themselves all the time, especially if they are playing alone. Trauma, stress and anxiety are factors in keep doing this in adulthood, I guess.