The correct answer is Social phobia or social anxiety disorder
Social phobia or social anxiety is a disorder originated from intense anxiety or fear of being judged, negatively evaluated or rejected in a social situation or performance appraisal period.
People with social phobia may worry excessively or act visibly anxious in social situations (blushing, stuttering, losing their breath while talking, among others). As a result, they often avoid social situations, suffering with extreme anguish.