Have you had any stressful experience that was very disturbing, made you feel helpless or very upset? If you can remember and name a few, it probably means you had traumatic experiences.
In the past, people though time was the only medicine for psychological trauma, but just letting the time pass might not solve the program. While some recover from it fair quickly, the other cannot forget and do not recover or do very slow. How quickly one recovers from trauma depends on the experiences.
While trauma itself does not do any physical harm to the body, some believe that it can lead to more serious illnesses and that it is necessary to seek professional help for those who suffer from trauma.
See this article to learn more about emotional and psychological trauma and check if you might need some help to truly overcome this emotional illness.