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Feeling heart beat and Loss of consciousness

This page contains some of the conditions that could be the cause of these symptoms, although it is not a complete list of possible conditions.

Conditions

Postural tachycardia syndrome

Postural tachycardia syndrome (PoTS) is an abnormal increase in heart rate after sitting or standing up.

Symptoms of this condition may include:

  • Feeling heart beat
  • Dizzy or lightheaded on standing up
  • Loss of consciousness
  • Lightheaded or feeling dizzy
  • Shortness of breath

Our Health A-Z contains more information on Postural tachycardia syndrome.

If you are worried about this condition you can try our free AI Symptom Checker here.

SVT

Supraventricular tachycardia (SVT) is the name given to an abnormality of heart rhythm, characterised by a fast heartbeat.

Symptoms of this condition may include:

  • Feeling heart beat
  • Loss of consciousness
  • Chest pain
  • Lightheaded or feeling dizzy
  • Shortness of breath

Our Health A-Z contains more information on SVT.

If you are worried about this condition you can try our free AI Symptom Checker here.

Important: If you have these symptoms, they may be unrelated to any of these conditions listed. If you are concerned about your symptoms then you should see a doctor.

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