Sorry karma is biting you in the rear right now. I am a firm believer in karma. I have seen where it has brought a lot of good to good people. I have also seen it bite people in the butt, myself included.
Reap what you sow is sort of the idea behind karma, though. It's been twisted around in popular culture so much that the true meaning isn't always apparent. People often forget the big picture idea of karma, thinking an action will have an immediate reaction.