I have bipolar disorder, am 76 years old and have begun to sleep walk and talk. I sometimes awaken to find i am reaching for something or going somewhere on someone else's request. These events are never unpleasant. Everyone i interact with seems sweet. Of course, i am on several meds to keep stabalized moods and to insure that i sleep. I suffered from insomnia for years before i was diagnosed. My brain simply would not stop.
I am very intersted in finding an explanation for this sudden change.