Prevention & care

Dizziness: spinning, faintness, timing, triggers and assessment

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Dizziness describes several experiences: lightheadedness, feeling about to faint, unsteadiness, or an illusion that you or the surroundings are moving. Vertigo is the motion sensation. These are symptom descriptions rather than diagnoses, and different causes can produce similar experiences.[1]

New neurological symptoms need emergency care

Dizziness with new trouble speaking, arm or leg weakness, numbness, double vision or loss of vision can require emergency assessment. Sudden hearing loss with vertigo also needs urgent attention. Call the local emergency service, such as 911 in the US; NHS guidance uses 999. Do not drive yourself. A severe headache, significant vomiting or high temperature accompanying vertigo warrants prompt medical advice. These examples are warning signs, not a complete list; absence of one does not establish safety.[4]

Balance combines several signals

The brain combines information from the inner ears, eyes, and body position sensors to maintain balance. Problems in more than one system can contribute, which is why a balance assessment may involve several examinations.[2]

Timing and triggers answer different questions

A brief episode clearly triggered by rolling over in bed differs from continuous dizziness that remains present between movements, even if movement makes it worse. TiTrATE distinguishes continuous acute vestibular symptoms, spontaneous episodes without a clear trigger, and brief triggered episodes. Clinicians use the pattern together with targeted examinations. A pattern narrows the assessment; it does not prove an inner-ear cause or exclude stroke by itself.[8]

Standing-related faintness is another category

Orthostatic hypotension means blood pressure falls on standing. A commonly used definition is a drop of at least 20 mmHg systolic or 10 mmHg diastolic within three minutes. Symptoms can include lightheadedness, blurred vision or fainting, but the condition can also occur without symptoms. It can reflect impaired autonomic regulation, low circulating volume, medicines or other factors. Feeling dizzy after standing is a reason to describe the circumstances, rather than assuming a blood-pressure diagnosis from the sensation alone.[5]

BPPV involves displaced inner-ear particles

Benign paroxysmal positional vertigo, or BPPV, involves small calcium carbonate particles entering an inner-ear canal where they create misleading movement signals. Typical episodes are brief and related to head position. A clinician assesses characteristic eye movements during position testing; simply becoming dizzy during any movement is insufficient. Canalith repositioning, such as an Epley procedure, targets this mechanism. Recurrence can occur, and repeat treatment may be needed. Assessment also considers other explanations for similar symptoms.[6]

Evidence & uncertainty

TiTrATE is a proposed clinical framework that organizes acute dizziness by timing, triggers and targeted examination. This differs from assigning a cause solely from an adjective such as spinning. The framework guides assessment rather than guaranteeing a diagnosis, and it cannot be turned into a home stroke-exclusion checklist.[8]

Selected-source overview · Independent review pending

Published questions

Is vertigo the same as all dizziness?

Selected-source overview · Independent review pending. Read the evidence context.

No. Vertigo is a feeling of movement or spinning. Other dizziness can feel like faintness or imbalance; the description alone does not establish its cause.[4]

Evidence behind this answer

Vertigo
official or institutional patient explanation · 2023
Selected relevant passages on the original source page inspected · Symptoms; urgent and immediate-action advice