The room spins or my balance is off
We look at ear and vestibular causes such as BPPV, Ménière's disease, and vestibular neuritis, checking when it occurs, how it relates to posture, and any hearing changes or headache.
How dizziness is evaluated →Does the room spin when you turn your head?
Do you feel dizzy and your heart pounds when you stand up or stand for a long time?
We look at ear and vestibular causes together with blood pressure and pulse changes on standing,
and guide you to the evaluation you need.
Dizziness · POTS · Orthostatic hypotension · Autonomic evaluation
We do not decide on a diagnosis from the feeling of dizziness alone. We check what triggers it and what other symptoms come with it.
We look at ear and vestibular causes such as BPPV, Ménière's disease, and vestibular neuritis, checking when it occurs, how it relates to posture, and any hearing changes or headache.
How dizziness is evaluated →If palpitations, dizziness, and fatigue appear together on standing, we evaluate orthostatic intolerance such as POTS, and distinguish the effects of anemia, dehydration, and medications.
POTS symptoms and diagnosis →We check whether your blood pressure drops when you get up from sitting or lying down, and also look at feeling faint, your medications, and links with meals and fluid intake.
About orthostatic hypotension →Feeling dizzy when you stand up is not, on its own, a reason
to treat POTS and orthostatic hypotension as the same condition.
| Category | POTS | Orthostatic hypotension · OH |
|---|---|---|
| Key change | Sustained rise in heart rate on standing | Drop in blood pressure on standing |
| Also checked | Whether blood pressure drops · chronic orthostatic symptoms · other causes of a fast heart rate | Timing · link between symptoms and blood pressure · causes such as medications or dehydration |
| How it is evaluated | History and examination, with blood pressure and pulse measured lying down and after standing. Tilt-table testing and further evaluation when needed. | |
A diagnosis is not decided by a single number. We consider the time course after the change in posture together with any coexisting conditions. [1] [2]
We choose evaluations that fit your symptoms
and explain what the results mean and where their limits are.
Is it when you lie down, stand up, or stand for a long time? We check how long it lasts and other symptoms such as palpitations, hearing changes, and headache.
We consider an ENT examination, hearing and vestibular evaluation where needed, and blood pressure and pulse measurement in different positions. Our clinic offers HRV and tilt-table testing.
We do not diagnose POTS or every autonomic disorder from HRV numbers alone. We also consider other causes such as medications, anemia, or dehydration, and whether further care is needed.
We connect you with treatment and lifestyle adjustments based on the diagnosis, and with other departments when needed. The goal is to look at both the degree of dizziness and changes in daily life.
Preparation and time required differ by test. When booking, please check whether same-day testing is possible.
Do not stop prescribed medications on your own or fast excessively. If you have a history of fainting, please also ask whether you should come with a companion.
Yes. We look at ear and vestibular causes such as BPPV and Ménière's disease, and evaluate symptoms that appear when you stand up or stand for a long time together with changes in blood pressure and pulse. If a cardiac or neurological cause is suspected, we connect you with the appropriate department.
Both can cause dizziness while standing, but they are different conditions. POTS is judged mainly by a sustained increase in heart rate on standing, and orthostatic hypotension by a drop in blood pressure. Symptoms and their changes over time need to be considered together.
No. HRV is supporting information that looks at the variation between heartbeats. Because it is also affected by age, breathing, sleep, and medications, we interpret it together with your history, examination, and posture-related changes in blood pressure and pulse.
Each test covers a different range. After reviewing your previous results, we look again at what triggers the symptoms, how long they last, headache or hearing changes, your medications, and your response to standing, and then decide on the next evaluation.
Preparation depends on the type of test and your medications. Please do not stop prescribed medications on your own or fast excessively. When booking, check whether testing is planned and how to prepare.
When, in what position, and for how long you feel dizzy.
Bringing previous test results and your current medications helps the visit.
References and clinic information · Content as of 2026-09-09
Scope of care, location, and booking information: Yonsei DANA ENT Clinic official website. This page provides general health information and does not replace an individual diagnosis. Tests and treatment are decided based on your examination.