Since children cannot verbalize their feelings and what their behavior means. Are they shy? Afraid? Self-esteem? Over-stimulated? Too cautious? These traits are all applied to children who are HS. However, the trait can also be mistaken for a disorder. It can be mistaken as HS when there truly is a serious disorder that needs specialized treatment. The earlier the problem is treated the more successful the outcome. The trait can also co-occur with HS, which requires an evaluation by a specially trained child developmental professional in working with Highly Sensitive Children.