agc83
Hey... while no one here can diagnose you for sure, what you describe sounds a lot like OCD. You'll be surprised how common your thoughts/fears are in people with OCD. I used to pray constantly since I was a kid because I thought the world was going to hell. At age 18 I see a doctor, and was I just weird? No, I had OCD. Been five years since then, and with treatment things have improved significantly.
I would suggest you speak to a doctor. No one will think you are a nut case! I think most proffesionals would recognize whats going on the instant you tell them what you have said here. Maybe research the disorder on the net... I think you'll find you'd be surprised at your story and its similarity to OCD sufferers.
You'll be pleased to know if you do have OCD that it is far from any kind of insanity, and that it is very treatable.
Steve