Dizziness

dizzydisequilibriumgiddinessdisequilibrationDisequilibrium (medicine)dizzinesdizzy and nauseateddizzy spellsfeeling dizzyfeeling faint
Dizziness is an impairment in spatial perception and stability.wikipedia
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Vertigo

dizzinessvertiginousperipheral vertigo
The term dizziness is imprecise: it can refer to vertigo, presyncope, disequilibrium, or a non-specific feeling such as giddiness or foolishness. Dizziness is broken down into 4 main subtypes: vertigo (~25-50%), disequilibrium (less than ~15%), presyncope (less than ~15%) and nonspecific dizziness (~10%).
Vertigo is the most common type of dizziness.

Lightheadedness

presyncopelight-headednesslight-headed
The term dizziness is imprecise: it can refer to vertigo, presyncope, disequilibrium, or a non-specific feeling such as giddiness or foolishness. Dizziness is broken down into 4 main subtypes: vertigo (~25-50%), disequilibrium (less than ~15%), presyncope (less than ~15%) and nonspecific dizziness (~10%).
Lightheadedness is a common and typically unpleasant sensation of dizziness or a feeling that one may faint.

Hypotension

low blood pressurehypotensivelow
The primary symptoms of hypotension are lightheadedness or dizziness.

Sense of balance

balanceequilibrioceptionequilibrium
Dizziness is broken down into 4 main subtypes: vertigo (~25-50%), disequilibrium (less than ~15%), presyncope (less than ~15%) and nonspecific dizziness (~10%).

Stroke

ischemic strokestrokescerebrovascular accident
Signs and symptoms of a stroke may include an inability to move or feel on one side of the body, problems understanding or speaking, dizziness, or loss of vision to one side.

Panic disorder

panicpanic disorderspanic disorde
Common symptoms of an attack include rapid heartbeat, perspiration, dizziness, dyspnea, trembling, uncontrollable fear such as: the fear of losing control and going crazy, the fear of dying and hyperventilation.

Broken escalator phenomenon

Walker effect
The broken escalator phenomenon, also known as the Walker effect, is the sensation of losing balance or dizziness reported by some people when stepping onto an escalator which is not working.

Chronic subjective dizziness

The term chronic subjective dizziness (CSD) is used to describe a commonly encountered type of dizziness that is not easily categorized into one of several other types, and for which the physical examination is typically normal.

Illusions of self-motion

perception of self-motionIllusion of motionland sickness
Disorders of the visual system can lead to dizziness, vertigo, and feelings of instability.

Balance disorder

postural instabilityimbalancebalance
The term dizziness is imprecise: it can refer to vertigo, presyncope, disequilibrium, or a non-specific feeling such as giddiness or foolishness.

Hyperventilation

hyperventilatinghyperventilaterapid breathing

Ménière's disease

Meniere's diseaseMénière’s diseaseMenieres disease

Labyrinthitis

vestibular neuronitisinner ear infectionvestibular neuritis

Vestibular schwannoma

acoustic neuromaacoustic neuromasneuroma, acoustic

Ramsay Hunt syndrome

Ramsay Hunt syndromesEarly-onset cerebellar ataxia with myoclonusHunt's ataxia

Migraine

migrainesmigraine headachemigraine headaches

Pregnancy

pregnantfirst trimesterpregnant women