Probably this is how you feel the pressure from society that is overwhelmingly religious. What if they're right?? :P
Bad things happen to all people, theists included. In which case 'He' is trying to prove them he doesn't exist! ;)
I think this is a normal process you're going through. Relax and enjoy life. Bad things happen sometimes and no one can stop them from happening by believing or not believing in god.
I had feelings like that in my youth when I was an agnostic, and it seems natural to me. As an Atheist I do not have these feelings because I do not believe in the supernatural.