- Record whether the heartbeat feels fast, irregular or both.
- Note how suddenly it starts and stops, how long it lasts and what you were doing.
- Dizziness, fainting, chest pain or breathlessness make palpitations more concerning.
Why this deserves attention
A racing, pounding, fluttering or “skipping” heartbeat is described as palpitations. Some episodes are triggered by caffeine, lack of sleep, anxiety, dehydration or exercise; others may be related to an abnormal heart rhythm, thyroid problems, anaemia, medicines or other conditions. The feeling alone cannot reliably tell the cause.
What makes it more important
Medication and supplement history matters. Decongestants, stimulants, thyroid medication, some inhalers and concentrated “energy” products can affect heart rate. Family history of rhythm disorders or sudden cardiac death is also relevant. A smartwatch can capture useful timing information, but it should not replace medical assessment when symptoms are significant.
What to do next
If episodes recur, a doctor may consider an ECG, blood tests or longer rhythm monitoring depending on the pattern. Bring a list of medicines and drinks/supplements containing caffeine or stimulants. Avoid repeatedly checking your pulse in a way that increases anxiety; aim for useful records, not constant surveillance.
Where TCM may fit
TCM may be discussed for stress or sleep once dangerous rhythm problems have been considered. A pulse assessment in TCM is not equivalent to an ECG and should not be used to rule out arrhythmia.
When not to wait
Seek urgent medical care for palpitations with fainting, severe chest pain, major breathlessness, persistent very rapid heartbeat with weakness, or new neurological symptoms.
Related reading and Singapore resources
This page provides general health education, not an individual diagnosis or emergency plan. Sudden, severe, persistent or rapidly worsening symptoms — especially red flags — require appropriate conventional medical assessment.