Symptoms

Feeling weak

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General health-related symptom

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This is the feeling that you cannot hold your own weight or that you have lost general strength. Various factors, such as lifestyle habits, medications, and health conditions, can cause it.

Feeling weak can also result from a heart condition. This is because it can affect blood travelling around the body.

Related heart conditions

Circulatory problems

Cardiomyopathy

Cardiomyopathy is a disease of the heart that makes it hard for your heart to pump blood around the body.

Tests to further investigate concerns

Electrocardiogram (ECG)

Electrocardiogram (ECG or EKG)

An electrocardiogram is a test that measures and records your heart’s electrical activity and rhythm, including the strength and speed of your heartbeat.

Echocardiogram

Echocardiogram

An echocardiogram is an ultrasound scan that shows the heart’s structure and surrounding blood vessels. It allows us to analyse how blood flows through them and assess the heart’s pumping chambers.

ECG image

24 hour blood pressure monitor

A 24-hour blood pressure monitor is a portable blood pressure cuff attached to a small recording device to help detect your pressure levels outside the clinic setting.

 

Book your consultation 
with Dr Ravi Assomull today

 

Looking after your heart is the most important thing you can do to improve your longevity and quality of life in the long term.

We’re here for you during your journey to better heart health. We provide tests and management strategies to help identify what might be wrong and where you can improve your lifestyle to reach prime heart health.

Dr Ravi Assomull – Consultant Cardiologist, Harley Street, London

Book an appointment today to speak to our expert Integrative Cardiologist, Dr Ravi Assomull, about your heart concerns.

You can email us at: enquiries@cardiologist.london

Or call us at: 020 3576 2885






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    Frequently asked questions

    Answers from the team at Cardiologist London. For personalised advice, book a consultation or call 020 3576 2885.

    Why do I feel weak - could it be my heart?

    Generalised weakness has many causes, from anaemia and thyroid problems to medication effects - but a heart that pumps inefficiently, or an intermittent rhythm problem, can also present as weakness rather than classic chest symptoms, especially in older people.

    When is sudden weakness an emergency?

    Sudden weakness on one side of the body, facial drooping or slurred speech may be a stroke - call 999 immediately. Weakness with chest pain, severe breathlessness or collapse also needs emergency care.

    How is unexplained weakness assessed?

    A structured consultation and examination, blood tests to exclude common non-cardiac causes, an ECG, and where indicated an echocardiogram or ambulatory monitor. The aim is a clear explanation, not just reassurance.

    What our patients think

     

    Dr Assomull holds Doctify’s 2025 Outstanding Patient Experience award – explore our reviews and testimonials.