Intense, self-hatred for myself, Am I insane?

I think I'm losing my mind. Btw, I don't really hate myself.. I don't know how to explain it. I'm having very disturbing thoughts and overwhelming urges to go threw with them. (And before I get started, can I just make it perfectly clear, I'm not sad, or depressed, I don't have 'low-self esteem', and I don't want to end my life, I love my life.) I just have these crazy, uncontrollable, intense thoughts, (more like fantasies), of seriously slaughtering myself.. For example, today, out of nowhere, an image of me drilling my eyes out of there sockets just popped into my head and crossed my mind. It's been happening a lot lately, glimpses of me driving off a bridge, lighting myself on fire, slitting my throat, or cutting out my tongue.. And they're never about other people or involve anyone else, it's just me doing it to myself. I'm guessing it's just a 'you have no control of your life' phase? These obviously aren't the kind of thoughts I can just share with my parents or confide to a friend about. And obviously, I need to see a doctor, but I thought I'd put this out there anyway. Maybe someone will see this and have an explanation.