Anxiety is defined by the following: Social anxiety, phobias, PTSD, OCD, Panic Attacks, and Generalized Anxiety Disorder. Some of the symptoms of anxiety disorders are constant and unsubstantiated worry that causes significant distress. Avoiding social situations for fear of being judged embarrassed or humiliated. Seemingly out of the blue panic attacks and the preoccupation with the fear of having one. Irrational fear or the avoidance of an object, place or situation that poses little or no threat of danger. Recurring nightmares, flashbacks, or emotional numbing related to an traumatic event that occurred several month or even years ago.