Vertigo implies that there is a sensation of motion either of the person or the environment. This should not be confused with symptoms of lightheadedness or fainting.
If true vertigo exists, the READ MORE http://www.emedicinehealth.com/vertigo/page3_em.htm
Vertigo (Dizziness) Signs and Symptoms
Vertigo, or dizziness, refers to the sensation of spinning (subjective vertigo) or the perception that surrounding objects are moving or spinning (objective v READ MORE http://www.neurologychannel.com/vertigo/symptoms.shtml