Abstract
Background:
 It is mostly organic diseases that are considered when a neurological sign or symptom is present in the history of a patient; however, there may be psychiatric problems also present which could be missed. We report a case to discuss the possibility of the presence of an organic or psychiatric underlying disorder when facing neurological problems.
 Case Presentation:
 We report a case of chronic headache accompanied by vertigo and multiple medical problems including nystagmus and abdominal pain without any significant findings on physical exam that was diagnosed to have a somatization disorder (Not Otherwise Specified or NOS).
 Conclusion:
 We did not find any documents regarding the presence of true nystagmus as a functional, factitious or psychosomatic disorder; however, voluntary nystagmus has been reported in some cases with a series of fast (saccadic) back-to-back eye movements, without any interval or slow phase. It is recommended that psychiatrists and neurologists search for a psychiatric disorder as well; even if the problem is supposed to have an organic nature like nystagmus or vertigo, especially when associated with a prolonged, resistant, or unusual course.
Highlights
Vertigo, known as an illusion of movement, is one of the most common neurologic associated complaints in medicine [1,2]
We have reported a patient with chronic headache accompanied by vertigo and multiple medical problems including nystagmus, and abdominal pain
We reported a case in which nystagmus with vertigo did not have concordance with any organic disorders
Summary
Known as an illusion of movement, is one of the most common neurologic associated complaints in medicine [1,2]. It can be defined as subjective (abnormal sensation of movement with persons body) or objective (the environment) [3]. Prolonged Vertigo Associated with Nystagmus: A Case report common clinical condition, described as fast involuntary repetitive eye movements which might be from side to side (horizontal) up and down (vertical) or torsional. The most common group of somatoform disorders seen in clinical practice is somatization disorder which has special characteristics such as onset of unexplained medical symptoms before the age of 30 years old, multiple chronic complaints of unexplained physical symptoms, multiple pain symptoms, two or more gastrointestinal symptoms and at least one pseudo-neurological symptom [7]
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