All of the Following Are Examples of Somatic Symptom Disorders

All of the following are examples of somatic symptom disorders except ____.

A) Anne endures excessive stress, and she develops an ulcer.
B) Betty feels that she has developed heart disease, although she is in great shape physically.
C) Colleen finds that her legs are paralyzed during the day, but she is able to sleepwalk at night.
D) Dana complains of severe and constant pain in her back and joints, but the pain does not appear to have any physical cause.