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    Published on 18 March 2026

    Feeling giddy for weeks at a time could signal chronic dizziness, a symptom linked to many underlying conditions.


    At a glance

    • Chronic dizziness can persist for weeks or months, disrupting daily routines and increasing the risk of falls.
    • Inner ear disorders are among the most common underlying causes of chronic dizziness.
    • Urgent medical attention is needed if dizziness occurs with severe headache, speech difficulty, vomiting or limb weakness.

    You wake up like any other morning, ready for the day. But when you open your eyes, the ceiling seems to spin. Sitting up feels impossible, and a cold sweat sets in before you can steady yourself.

    Feeling dizzy after a viral illness or a bad night’s sleep is not uncommon, and it usually passes. But dizziness that keeps coming back – and persists for a month or longer – should be checked, said Dr Ng Shi Yang, Associate Consultant, Department of Neurology, National University Hospital (NUH).

    Dizziness is a broad term. It can describe light-headedness, a floating sensation, or a spinning feeling known as vertigo. Chronic dizziness is usually a sign of another underlying problem, ranging from dehydration or anaemia to stress or an inner ear disorder.

    “Sometimes, you may feel giddy because of anaemia or dehydration,” said Dr Ng. 

    Chronic dizziness can affect daily life in ways that are easy to underestimate. Some patients begin to avoid leaving home, and steer clear of busy places such as shopping centres.

    Over time, some patients begin to worry about their symptoms, which can lead to anxiety and insomnia. Both, in turn, can trigger further dizziness, creating a cycle that becomes hard to break.

    While chronic dizziness itself does not usually pose a direct health risk, the main concern is loss of balance, as a fall or accident can result in serious injury.

    Stress, inner ear problems and other factors

    There are many possible causes of chronic dizziness, which can make diagnosis challenging. These triggers include stress, sensory overload, sudden head movements, dehydration, or issues such as low blood pressure.

    Problems affecting the inner ear – which plays a key role in both hearing and balance – are a particularly common cause of chronic dizziness. 

    Within the inner ear are tiny calcium carbonate crystals called otoliths that act as motion sensors and help the body detect changes in position and movement. After a head injury or an inner ear infection, these crystals can sometimes shift out of place. When this happens, it can trigger benign paroxysmal positional vertigo (BPPV), a condition that causes brief episodes of spinning and nausea.

    Other inner ear conditions can also cause dizziness. These include acute vestibulopathy – often triggered by a viral infection affecting the balance nerve – as well as Ménière’s disease, which may also be accompanied by hearing loss and ringing in the ears.

    Who is more likely to get benign paroxysmal positional vertigo?

    BPPV can affect anyone but it is more common in people who:

    • are aged 50 and above
    • are female
    • have family members with a similar condition


    Don’t suffer in silence

    Symptoms that build up over one to three months are typical in chronic dizziness. A brief spell lasting a few days may point to a different cause. Even so, Dr Ng advised that urgent medical attention should be sought if dizziness is accompanied by severe headache, impaired speech, vomiting, or weakness in an arm or leg.

    Treatment begins with identifying the underlying cause. Doctors may arrange hearing and balance assessments, blood tests, and magnetic resonance imaging (MRI) scans, which provide detailed pictures of the brain and inner ear. Some patients experience relief with medication such as betahistine, although it is not intended for long-term use.

    For individuals diagnosed with BPPV, physiotherapy can be particularly helpful. A trained physiotherapist can guide repositioning manoeuvres, which involve specific head and body movements to help move displaced otolith crystals back to where they belong.

    Small adjustments may also help ease symptoms. These include avoiding sleeping on the affected ear, limiting sudden head movements, and staying well-hydrated, especially if dehydration is a contributing factor. If dizziness keeps returning or disrupts daily routines, it is worth seeking a specialist assessment rather than waiting for it to pass.

    In consultation with Dr Ng Shi Yang, Associate Consultant, Department of Neurology, NUH.

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