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Mal de Débarquement Syndrome (MdDS)

What is MdDS?

Mal de Débarquement Syndrome (MdDS) is a balance disorder that makes you feel like you are rocking, swaying, or bobbing even when you are still. It often starts after travel that involves motion, such as a cruise, flight, train ride, or long car trip. This is called motion-triggered MdDS. Spontaneous onset MdDS is when it begins without a clear motion trigger. MdDS is most common in middle-aged women.

In MdDS there is a lasting feeling of motion after motion has stopped. Many people feel brief “sea legs” after traveling on a boat or plane. This usually goes away within hours or days. With MdDS, the feeling of movement lasts much longer and can affect daily life.  A common sign of MdDS is that symptoms feel better when you are moving again, such as when riding in a car. The symptoms often return when the motion stops.

What is Happening in My Body?

Experts believe MdDS happens when the brain has trouble resetting after adapting to motion. During travel, your brain adjusts to constant movement. When the motion stops, the brain normally readjusts. In MdDS, the brain has trouble switching back to normal.

Because of this, you may feel:

  • Rocking, swaying, or bobbing sensations (usually not spinning)
  • Trouble with balance or walking steadily
  • Better when riding in a car and worse when you stop
  • “Brain fog” or trouble concentrating
  • Feeling very tired
  • Sensitivity to busy places, stores, crowds, or lots of visual motion
  • Head pressure or headaches (some people also have migraines)
  • Anxiety or feeling on edge (often because the symptoms are exhausting)

It is important to know:

  • You did not cause this.
  • These symptoms are real and commonly reported.
  • Many people improve over time with the right care.
  • It is normal to feel worried or frustrated. This condition can be difficult.

How is MdDS Diagnosed?

MdDS is mainly diagnosed based on your symptoms and their pattern. Providers often look for a rocking or swaying feeling that lasts longer than one month, usually after exposure to motion such as sea travel. There is no single lab test or scan that proves someone has MdDS. Because of this, testing is often done to rule out other possible causes.

What Your Provider May Ask:

  • Did your symptoms start after a cruise, flight, long drive, or train ride?
  • Did symptoms begin after an illness or stressful event?
  • Do you feel better while riding in a car or other moving vehicle?
  • Are symptoms present most of the day, or do they come in episodes?
  • Do you have migraine symptoms such as headaches, light sensitivity, sound sensitivity, visual aura, or nausea?
  • What makes symptoms worse, such as standing still, screens, busy stores, poor sleep, or stress?
  • To rate your symptoms from 1-10 on on MdDS scale (0 no symptoms to 10 severe symptoms)
Before your visit think about your answers to these questions, and write them down if that is helpful for you. This will prepare you to have a detailed and clear conversation with your provider. 

Common Tests Used to Confirm Diagnosis

Your provider may order tests to rule out other causes:

  • Hearing test (audiology test): Checks hearing and helps rule out other inner ear problems.
  • Vestibular testing (like VNG/ENG): Evaluates the balance system and eye movement.
  • Neurologic exam: Checks strength, sensation, reflexes, eye movements, and walking.
  • Imaging (MRI in some cases): Provides a detailed scan of the brain to rule out other causes.
  • Blood tests: Checks blood for signs of other causes to help rule them out. 

An example of a clinician checking for subtle eye movements while a patient wears infrared video goggles.

How is MdDS Treated?

Treatment is different for each person. Some treatments aim to help the brain recalibrate after motion, while others focus on reducing symptoms and helping you function better in daily life.  Many people benefit from a combination of treatments.

Common Treatment Options:

  • Specialty Readaptation Therapy (Optokinetic / VOR Readaptation)
    Some specialized programs use visual motion with guided head movements. This therapy helps retrain how the brain processes motion. Research shows this approach can help some people with both motion-triggered and spontaneous MdDS.
  • Vestibular Rehabilitation and Supportive Therapy
    A vestibular physical therapist can help improve balance, build movement confidence, and support a return to daily activities. Some people also benefit from counseling approaches such as Cognitive Behavioral Therapy (CBT). These strategies can help manage stress, sleep problems, and symptom flare-ups.

  • Lifestyle Changes That Can Help
    Healthy daily habits may also help, including:

    • Consistent sleep
    • Gentle exercise, as tolerated
    • Stress reduction
    • Pacing your activities throughout the day

    Many people also feel better when they reduce triggers such as:

    • Long periods of screen use
    • Busy visual environments
    • Crowded places, especially early in recovery

    If migraine features are present, migraine-friendly habits such as regular sleep, hydration, and meals may also help.

  • Medications
    Some medications may help reduce symptoms for certain people, but there is no single medication that cures MdDS. Providers may consider medications that help with:

    • Anxiety
    • Sleep
    • Nervous system sensitivity

    Some antidepressant-type medications may be used. Some people report relief from certain anti-anxiety medications called benzodiazepines, but these can cause dependence and are usually used carefully and for short periods. If migraine is involved, migraine prevention medications may also be considered.

What Can I Expect Over Time?

Will I get better?
Many people improve over time, especially after they get the right diagnosis and treatment plan. Some people recover in weeks to months. Others have symptoms for a longer time. Even if symptoms have lasted for months, improvement is still possible.

How long will it take?
There is no single timeline. Some people improve within a few months, while others need more time. Symptoms may flare up after:

  • New travel
  • Major stress
  • Poor sleep

Tracking your symptoms can help you and your provider adjust your treatment plan.

Can I live a normal life?
Many people return to a full and meaningful life, even if symptoms do not go away right away. The goal is to help you function better over time, step by step. Support, pacing, and the right care team can make a big difference.

When Should I Call My Provider?

Contact your provider if you have:

  • New weakness, numbness, face drooping, confusion, or trouble speaking
  • New difficulty walking, repeated falls, or severe clumsiness
  • A sudden severe headache (especially the worst headache of your life)
  • Fainting, chest pain, or trouble breathing
  • New one-sided hearing loss, severe ear pain, or ear drainage
  • Severe vomiting or signs of dehydration
  • Any new symptom that feels sudden, frightening, or very different from your usual symptoms

Questions to Ask Your Provider

When you visit you provider, it may be helpful to ask the following questions. This can help you better understand your dizziness and how it will be treated.
 
  • Do my symptoms fit MdDS, or could vestibular migraine or PPPD (Persistent Postural Perceptual Dizziness) also be involved?
  • What other causes are you ruling out, and why?
  • Which tests do I need, and what will each test show us?
  • Should I see a vestibular specialist?
  • Is specialty re-adaptation therapy an option for me? If not, what’s the best local plan?
  • If medication is recommended, what are the benefits, side effects?
  • What should I do about travel, driving, exercise, and screens while recovering?
  • When should I follow up, and what symptoms should I track at home?

Key Takeaways/Key Points to Remember

  • MdDS can cause a constant rocking or swaying feeling even when you are still.
  • It may start after travel with motion or without a clear trigger.
  • Many people feel better during motion (like riding in a car) and worse when they stop.
  • Diagnosis is mainly based on symptoms, and tests are used to rule out other causes.
  • Vestibular migraine and PPPD can look similar to MdDS and they can sometimes occur together.
  • Treatment may include readaptation therapy, vestibular therapy, healthy routines, and sometimes medication.
  • Many people improve over time, although recovery may take patience.

Additional Resources