Walter has a fear of enclosed spaces. He sweats profusely, shakes and becomes highly agitated whenever he thinks about enclosed spaces, and he avoids them at all cost, even if it means he will not be able to do something or go someplace. His friend Peter does not like enclosed spaces either; however, Peter will not avoid doing things that require him to be closed off or in a small space. The difference between Walter's reaction and Peter's reaction is that Walter's reaction:

is more intense

Explanation:

Anxiety Disorder is simply defined as class of mental disorder in which anxiety is the main element or feature.

It recognized in the DSM-5 are phobic disorders, panic disorder, and generalized anxiety disorder

Claustrophobia is usually defined as the fear of being in a small, enclosed space. Phobic disorders as disorders characterized by persistent, and excessive fear and avoidance of specific objects, activities, or situations.

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