Yes. I have intrusive thoughts of an old friend - who I've broken off contact with - of repeatedly torturing me. She was a narcissist / user. The thoughts are constantly recurring and evolving. I try to challenge them by saying, "that really didn't happen" or "these are just thoughts and nothing more" but they have an effect on me, get my adrenaline going, get me riled up and I've stopped fighting them and just try to let them pass. They are a symptom of my C-PTSD illness. Like an addiction, I have no control over them. In fact, they seem to control me. I've discussed them with several T's but they really have not given me an effective treatment. One said that I needed to take more control of my thoughts. When I asked how to do that, she had no answer.