Well, I too have horrible invasive thoughts. When I first learned to drive at 16 I used to have thoughts of driving myself into a tree or off a cliff or even into other cars. I hated to drive because I was afraid of myself. I used to tell my dad but of course he thought I was just acting out.
But yeah, I have thoughts of hurting myself. Sometimes I pull my hair out and hit myself, I don't do cutting, but I have given myself lumps and bruises and such. I usually attack my head and face. It's pretty scary when it happens. I hate it.
I have also had episodes of paranoid delusions, some hallucinations, and such. But they don't stay. One day they just kind of evaporate.