Dizziness

Dizziness or light headedness is an unpleasant sensation feeling that one may faint.

Prevalence

 * In a 2001 Belgian study, 69.6% of patients meeting the Fukuda criteria and 74.6 % of patients meeting the Holmes criteria, in a cohort of 2073 CFS patients, reported light headedness.

Symptom recognition
The Canadian Consensus Criteria lists light headedness as a symptom of ME/CFS under the section Autonomic Manifestations.

Possible causes
https://www.youtube.com/watch?v=79Iol892EPw Videonystagmography (VNG eng testing) is used for testing inner ear and central motor functions.link title