Reminds me of that Star Trek episode with the normal and the "evil" Captain Kirk!.... Jung talked about the "shadow" - the hidden part of our personality that is the reverse of our normal (surface) personality - usually a hidden part that we dislike. Sounds like you may have given a voice to your shadow. Try a Gestalt therapy approach and have the two sides of you get into a discussion on that forum. You might learn something interesting about yourself.