Dizziness

Dizziness
Vertigo, the sensation of one's surroundings spinning around them, is a common symptom of dizziness.
Specialty	ENT surgery, Otorhinolaryngology; if the dizziness is confirmed to be a symptom of a nervous system disorder, then neurology
Symptoms	Feeling of things are spinning or moving when they are not, lightheadedness, giddiness, or unsteadiness

Dizziness is an imprecise term that can refer to a sense of disorientation in space, vertigo, or lightheadedness.^[1] It can also refer to disequilibrium^[2] or a non-specific feeling, such as giddiness or foolishness.^[3]

Dizziness is a common medical complaint, affecting 20–30% of persons.^[4] Dizziness is broken down into four main subtypes: vertigo (~25–50%), disequilibrium (less than ~15%), presyncope (less than ~15%), and nonspecific dizziness (~10%).^[5]

• Vertigo is the sensation of spinning or having one's surroundings spin about them. Many people find vertigo very disturbing and often report associated nausea and vomiting.^[6]
• Presyncope describes lightheadedness or feeling faint; the name relates to syncope, which is actually fainting.
• Disequilibrium is the sensation of being off balance and is most often characterized by frequent falls in a specific direction. This condition is not often associated with nausea or vomiting.
• Non-specific dizziness may be psychiatric in origin. It is a diagnosis of exclusion and can sometimes be brought about by hyperventilation.^[3]