I too experienced that state a couple of years ago after I gave birth. What triggered it was taking meds I can't rember the name right now that helped me with postpartum pain. But unfortunately it counter acted and I went into full blown psychosis going into a hypnomatic state. I looked in the mirror and literally saw the devil within me. It was the most frightening experience of my life. The emotions that I went through the course of that time felt like a roller coaster ride. I never want that to happen to me again.