Minor traffic accident symptoms and conditions

I used Ambien 2-3 days per week for the past few months. I just woke up after having several vivid/complicated nightmares. Each nightmare was worse than the one before. The last nightmare woke me up. I was being framed for murder of a white woman after a minor traffic accident (I'm a black man). I'm very bothered by this and don't want to sleep now, fearing more nightmares. This has happened after I slept without taking Ambien.

I have had one episode of sleep-walking, where I ate the meal that I had prepared for lunch the next day.