Heart Palpitations: Causes, Symptoms and When to See a Cardiologist

Have you ever felt your heart suddenly racing, pounding, fluttering, or skipping a beat, even when you are sitting or resting? This sensation is known as heart palpitations. It can happen after physical activity, during stress, or after consuming too much caffeine. In some cases, however, it may indicate an underlying heart rhythm problem.

Although heart palpitations are often harmless, recurring episodes should not be ignored. Understanding the causes, recognising the symptoms, and knowing when to consult a cardiologist can help you take better care of your heart.

What Are Heart Palpitations?

Heart palpitations are sensations that make you unusually aware of your heartbeat. You may feel your heart beating faster than normal, pounding strongly, fluttering, or missing a beat.

These sensations can occur during exercise, emotional stress, or even while resting or sleeping. Some episodes last only a few seconds, while others may continue for several minutes or longer.

Heart palpitations are a symptom rather than a disease. They do not always indicate a serious heart condition, but persistent or unexplained episodes may require medical evaluation.

Common Causes of Heart Palpitations

Several factors can trigger heart palpitations. Identifying the cause is important because treatment depends on what is responsible for the symptoms.

1. Stress and Anxiety

Stress, fear, and anxiety can activate the body’s natural response to emotional pressure, increasing your heart rate and making your heartbeat more noticeable. Palpitations may occur during stressful situations or panic episodes.

However, it is important not to assume that palpitations are caused by anxiety without considering other possible causes.

2. Excessive Caffeine and Stimulants

Coffee, strong tea, energy drinks, nicotine, and certain stimulant-containing products can trigger palpitations in some people. If you notice symptoms after consuming these products, reducing your intake may help.

3. Lack of Sleep and Physical Exhaustion

Insufficient sleep, overexertion, and fatigue can contribute to episodes of heart palpitations. Maintaining a regular sleep schedule and allowing adequate recovery after physical activity may help reduce these triggers.

4. Dehydration and Fever

Dehydration and fever can affect your heart rate. If you are losing fluids through sweating, vomiting, or diarrhoea, your heartbeat may become faster or more noticeable.

5. Anaemia and Thyroid Problems

Iron-deficiency anaemia can reduce the blood’s ability to carry oxygen, causing the heart to work harder. An overactive thyroid gland can also increase heart rate and trigger palpitations.

A doctor may recommend blood tests to check for these conditions when appropriate.

6. Heart Rhythm Disorders

An abnormal heart rhythm, medically known as an arrhythmia, can cause the heart to beat too quickly, too slowly, or irregularly. Conditions such as atrial fibrillation may cause recurring palpitations and require specific treatment.

Heart valve disease and other underlying heart conditions can also contribute to palpitations.

7. Certain Medicines

Some medicines, including certain cold and cough remedies and asthma medications, may trigger palpitations in some people. If symptoms begin after starting a new medicine, discuss them with your doctor. Do not stop prescribed medication without medical advice.

Symptoms of Heart Palpitations

People experience heart palpitations differently. Common sensations include:

A racing or unusually fast heartbeat
A pounding or thumping sensation in the chest
Fluttering in the chest
A feeling that the heart has skipped a beat
A sensation of extra or irregular heartbeats
A heartbeat that feels unusually strong while resting

Some people experience palpitations without any other symptoms. Others may also notice dizziness, tiredness, breathlessness, or discomfort.

The symptoms alone cannot confirm whether an abnormal heart rhythm is present. A medical assessment may be needed to identify the cause.

When Should You See a Cardiologist for Heart Palpitations?

You should consider consulting a cardiologist if you experience:

Palpitations that occur repeatedly or become more frequent
Episodes that last longer than usual
A racing or irregular heartbeat without an obvious trigger
Palpitations accompanied by dizziness or unusual fatigue
Symptoms during physical activity
Palpitations along with a known heart condition
A family history of significant heart rhythm problems or sudden cardiac death

Even if the symptoms are mild, recurring or unexplained heart palpitations deserve attention. Early evaluation can help identify a possible underlying condition and guide appropriate treatment.

Warning Signs That Need Emergency Medical Attention

Seek emergency medical care immediately if heart palpitations occur with chest pain or pressure, severe shortness of breath, fainting, or severe dizziness. These symptoms may indicate a serious heart problem and should not be ignored.

If the symptoms have stopped, you should still seek urgent medical assessment if they occurred alongside these warning signs. Do not drive yourself if you feel faint or seriously unwell.

How Are Heart Palpitations Diagnosed?

A cardiologist will assess your symptoms, medical history, medicines, lifestyle, and any relevant family history. Depending on your condition, the following tests may be recommended.

Electrocardiogram (ECG)

An ECG records the electrical activity of your heart. It can help identify certain abnormal heart rhythms and other electrical changes.

Holter Monitoring

If palpitations occur intermittently, a standard ECG may not capture an episode. A Holter monitor records your heart’s electrical activity continuously over a period, commonly 24 to 48 hours. Longer monitoring may be recommended when symptoms occur less frequently.

Echocardiogram

An echocardiogram uses ultrasound to assess the structure and pumping function of your heart. It may be recommended if the doctor suspects a structural heart problem.

Blood Tests

Blood tests may help identify possible causes such as anaemia, thyroid abnormalities, or electrolyte imbalances.

Not everyone needs every test. Your cardiologist will recommend investigations based on your symptoms and clinical findings.

Treatment Options for Heart Palpitations

Treatment for heart palpitations depends on the underlying cause. Occasional palpitations caused by temporary triggers may not require specific treatment once serious causes have been excluded.

Depending on the diagnosis, management may include:

Reducing caffeine or other identified triggers
Improving sleep and managing stress
Correcting dehydration or an identified nutritional or electrolyte deficiency
Treating an underlying thyroid condition or anaemia
Prescribed medicines to control heart rate or rhythm
Specialist procedures for certain heart rhythm disorders, when indicated

Do not self-medicate or take heart medicines without a doctor’s advice. If an abnormal heart rhythm is diagnosed, following the recommended treatment and monitoring plan is important.

How Can You Reduce the Risk of Heart Palpitations?

Although not all episodes can be prevented, these habits may help reduce common triggers:

Maintain a regular sleep schedule.
Drink enough water, particularly during hot weather and physical activity.
Limit caffeine if it triggers your symptoms.
Avoid smoking and nicotine products.
Practise relaxation techniques to manage stress.
Exercise regularly according to your health and fitness level.
Take medicines only as directed and discuss possible side effects with your doctor.
Keep track of when palpitations occur, how long they last, and any associated symptoms.

If palpitations continue despite these changes, seek medical advice rather than relying on lifestyle changes alone.

Heart Care at Shifa Hospitals, Tirunelveli

Heart palpitations can have several causes, ranging from temporary lifestyle triggers to conditions that require specialised cardiac care. Recognising recurring symptoms and seeking timely medical evaluation can help you understand what is happening and determine the appropriate next steps.

At Shifa Hospitals, Tirunelveli, patients can consult the cardiology team for assessment of heart-related symptoms and guidance on appropriate investigations and treatment.

If you experience repeated, unexplained, or worsening heart palpitations, consult a cardiologist to discuss your symptoms. If palpitations occur with chest pain, severe breathlessness, or fainting, seek emergency medical care immediately.

Your heart health matters. Do not ignore persistent changes in your heartbeat.

Ortho

Heart Palpitations: Causes, Symptoms & When to See a Cardiologist

October 29, 2026

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