Sometimes I will get these random images in my head of me taking a knife (like a nice kitchen knife) and just stabbing it into the top of my fore arm and dragging it down. Other mental images like me literally slicing my own throat or stabbing myself in the chest have also come up, but not as often as the first one.

I've had mental images like this for a while, but I've recently decided to acknowledge that they exist and need to go. I'm not sure WHY they are there and come up when I get depressed, pissed, see a kitchen knife, or sometimes even just randomly.

I have Self-Injured before, but never with a blade of any sort. I used my fingernails and scratched my skin. I haven't done this since around the beginning of July.

Any explanation of WHY the heck I'm having these mental images or how to stop them? Not even sure if this is the right place to post this, but I hope someone can help me, because they are kinda disturbing.