There is nothing particularly special about hearing negative voices in your head. I suspect that most of us have, at one time or another. Some of us may even hear these voices frequently. And, some of these voices may be so strident as to lead one to disbelieve the credibility of any successes that she or he has experienced. It may surprise you that research suggests that some 70% of adults hear these strident voices at one time or another, and sometimes frequently.