Mine are themed around the fear that I have physically hurt someone in the past and don't remember it or I'm being pursued by the cops because I'm in trouble. Also, every time I have sex, even just oral sex, I am convinced that I've contracted HIV. 

My therapist thinks it's more like OCD, but my psychiatrist thinks it's psychosis. I was just wondering if anyone else with BPD (one of my official diagnoses) experience this as well and, if so, how do you deal with them?