The general definition of psychotic behavior is a withdrawal of self from reality. One may experience things that others don’t and that is the most basic symptom of psychotic behavior. Some behavior includes difficulty in concentrating, prolonged depression, insomnia or oversleeping, selective withdrawal, self-abuse, substance abuse, potential danger to people around them, and erratic behavior. But, a psychotic behavior for one, may not be for another person. Therefore, it is always necessary to consult a specialist to discuss abnormal attitudes.