What is PPPD? Persistent dizziness, explained in plain language

PPPD, short for persistent postural-perceptual dizziness, is one of the most common causes of chronic dizziness seen in specialist clinics, and one of the newest to have a name. It was formally defined in 2017, unifying older labels like chronic subjective dizziness and phobic postural vertigo into a single, recognisable condition [1]. If you have never heard of it, you are not behind; plenty of general practitioners are still catching up, which is part of why the average person with PPPD sees several doctors before getting an answer [2].

The symptoms: what PPPD feels like

The diagnostic criteria describe a distinctive pattern [1]:

• Dizziness, unsteadiness, or non-spinning vertigo on most days for three months or more. People describe rocking, swaying, bobbing, a feeling of walking on a boat or a trampoline, or a foggy sense of motion inside the head. It is usually there in the background for hours at a time, waxing and waning rather than striking in attacks.
• Worse when upright. Standing and walking aggravate it; lying down usually eases it.
• Worse with motion. Your own movement, or riding in a car, makes it climb.
• Worse with complex visual environments. Supermarket aisles, patterned carpets, scrolling on a phone, busy traffic, action films. This is called visual vertigo, and for many people it is the most disabling part.

Two things people consistently notice: the symptoms flare with fatigue and stress, and paying attention to them makes them louder. Neither of those means it is imaginary. Both are built into how the condition works.

How PPPD starts

PPPD almost always begins with a trigger: an attack of vestibular neuritis, an episode of BPPV, a vestibular migraine, a fainting episode, a panic attack, an illness, or sometimes a period of intense stress [1]. During that event, the brain rightly switches balance control into a high-alert mode: stiffen up, rely on vision, monitor every wobble. The problem is what happens next. In PPPD, the crisis passes, the inner ear recovers or compensates, but the brain's balance strategy never stands down. The high-alert settings become the new default, and those settings themselves generate the felt dizziness [2].

This is why researchers describe PPPD as a functional disorder: the hardware is intact, but the software is running the wrong program. It is also why standard scans and hearing tests come back normal, which so often gets misread as "there is nothing wrong with you".

What PPPD is not

• It is not damage. PPPD is not a progressive disease and does not destroy the inner ear or brain. Normal test results are expected, not suspicious.
• It is not imaginary. The dizziness is generated by real, measurable changes in how the brain controls balance and processes motion [2].
• It is not "just anxiety". Anxiety commonly travels with PPPD and can fuel it, but the criteria describe a distinct condition. Plenty of people with PPPD had no anxiety disorder before their dizziness began.

How PPPD is diagnosed

There is no scan or blood test for PPPD. The diagnosis is made on the story: the symptom pattern above, present for three months or more, usually following a triggering event, with other causes assessed and accounted for [1]. That makes your description of the pattern the single most important piece of evidence in the room. A clinician who hears "rocking most days for six months, worse in supermarkets and on screens, started after a vertigo attack last winter" can recognise PPPD in one sentence.

What helps: the treatment picture

Evidence supports three approaches, often combined [2]:

• Vestibular rehabilitation. A graded exercise program that retrains the balance system to trust normal motion again, ideally tailored to PPPD rather than generic.
• Cognitive and behavioural therapy. Not because the dizziness is "in your head", but because attention, threat appraisal, and avoidance are part of the engine that keeps it running. We explore one practical technique in somatic tracking for PPPD.
• Medication. SSRIs and SNRIs help a meaningful share of people, particularly when anxiety or low mood is along for the ride.

Recovery is usually gradual rather than sudden, and setbacks during stress or illness are normal, not evidence of failure.

Tracking PPPD without feeding it

PPPD comes with a tracking paradox: constant symptom-checking makes it worse, but your clinician genuinely needs the pattern, and you deserve to see your own progress. The answer is structure. A single, short, once-a-day check-in captures the trend without inviting hour-by-hour monitoring.

That is precisely how the Dizzin PPPD tracker is designed: one evening check-in of about a minute, logging your day as a whole, plus optional notes when something notable happens. The app does its pattern-finding quietly in the background, correlating your symptoms with sleep, stress, screens, and weather, and builds a doctor-ready PDF report for appointments. Months later, the chart showing your slow improvement is worth a lot, both to your clinician and to the part of your brain that needs proof things are getting better.

When to get checked promptly

PPPD is a diagnosis made after other causes are considered. New hearing loss, spinning attacks with vomiting, double vision, slurred speech, one-sided weakness, severe headaches, or dizziness after a head injury all deserve their own prompt medical assessment.

Dizzin is a self-tracking tool, not a medical device. This article is educational and is not a diagnosis. If this pattern sounds like yours, bring it to a clinician, ideally one familiar with vestibular disorders, and let them assess the full picture.

Related reading: Somatic tracking for PPPD · PPPD symptom tracker

Sources

1. Staab JP, Eckhardt-Henn A, Horii A, et al. Diagnostic criteria for persistent postural-perceptual dizziness (PPPD): Consensus document of the Bárány Society. Journal of Vestibular Research, 2017.
2. Popkirov S, Staab JP, Stone J. Persistent postural-perceptual dizziness (PPPD): a common, characteristic and treatable cause of chronic dizziness. Practical Neurology, 2018.
3. Vestibular Disorders Association (VeDA). Types of Vestibular Disorders.