Caustrophobia
Caustrophobia (from Latin caustrum "a shut in place") is the fear of having no escape, and being closed in. It is typically classified as an anxiety disorder and often results in panic attack. One study indicates that anywhere from 2-5% of the world population is affected by severe caustrophobia, but only a small percentage of these people receive some kind of treatment for the disorder
Jenna S. suffers from Caustrophobia. She cannot go on elevators, or small planes because she gets caustrophobic and sick and throws up for 4 hours at a time making very loud unhealthy noises.