Which disorder is characterized by the following: a pattern of recurring thoughts or behavior, such as repeatedly checking if the doors are locked, that prevents people fromgoing about their day normally
Well, It's either OCD or PTSD... Depending on what the person has gone through in the past, it could be PTSD, PTSD would be caused by being traumatized by something, Like if I got robbed, i would check if my doors are locked.
