Symptoms and Behaviors : As with older children, young children experience both behavioral and physiological symptoms associated with trauma. Unlike older children, young children cannot express in words whether they feel afraid, overwhelmed, or helpless. Young children suffering from traumatic stress symptoms generally have difficulty regulating their behaviors and emotions. They may be clingy and fearful of new situations, easily frightened, difficult to console, and/or aggressive and impulsive. They may also have difficulty sleeping, lose recently acquired developmental skills, and show regression in functioning and behavior.