Not sure if I'm totally off here so someone correct me if I am but are they like intrusive thoughts and thinking or writing them down helps you like, get through it? Like you have the thought and then visualise what it would be like if it happened but it's not that you actually WANT to do it? I have that and my psyc says its Part of my OCD not my bipolar? But to answer you, yes I do that a lot. I imagine horrible things sometimes but I wouldn't actually DO those things and sometimes I'm shocked or scared that I even thought them...