It is my belief that the mind (or what we think) creates our reality. So yes, clearly you can heal yourself with the power of your mind. For example, the 'pesky' voice that you heard was that of your unconscious mind. (Many people call it the inner child, or the subconscious) The unconcious mind is where all change takes place. In fact without the agreement of the unconsious we don't change. If you are interested in this type of healing, I would suggest adding hypnosis, mediation, NLP, and other forms of "mind therapy" to your protocol. It really helps getting one prepared for the nutritional changes that need to take place as well. Much light and Many Blessings to you as you embark on this amazing journey of healing and health!