I agree with Yoda.

If you are in therapy, continue to work on your problems and feelings with your therapist. If you are not in therapy, I think that starting therapy sessions will benefit you tremendously. It will help you understand more fully your condition as well as provide answers as to why your girl friend feels the way she does.

It could be that she is just overwhelmed and doesn't know how to handle her feelings, both her feelings for you and her feelings about your condition.

I do know this. If your relationship is meant to endure then it will and if it is not meant to endure there is nothing you can do to change that. Take care of yourself first then everything else will work itself out in time.