Heart Palpitations

Anthony Ofori | Medical Graduate in General Medicine | Founder, WellNest Central
Last updated: October 16, 2026

This article provides general education. Palpitations with chest pain, fainting, or severe breathing difficulty require emergency care; call 911 in the United States.

You settle into bed and notice a thump, flutter, or pause in your chest. Sometimes the next beat feels unusually strong. The sensation may disappear quickly, but it can leave you listening for every heartbeat instead of falling asleep.

Heart palpitations describe awareness of the heartbeat. They can feel fast, forceful, irregular, or as though a beat was skipped. The description alone cannot establish the rhythm or tell whether the cause is harmless.

Timing, duration, associated symptoms, and medical history help guide the assessment. A brief isolated sensation and a sustained racing heartbeat with faintness deserve different responses.

When should you seek urgent help?

Get emergency help for palpitations accompanied by chest pain, fainting, severe shortness of breath, or sudden stroke-like symptoms. Do not drive yourself if you are faint or seriously unwell.

The NHLBI guide to arrhythmia symptoms explains why symptoms such as dizziness, weakness, chest discomfort, or breathing difficulty matter. A normal-looking smartwatch reading should not override concerning symptoms.

Arrange a medical review for new, recurring, worsening, or prolonged episodes, especially if you have known heart disease or a family history of sudden unexplained death. If an episode feels substantially different from previous ones, say so clearly when seeking advice.

Prepare a clearer account of your symptoms
For educational help organizing observations and questions for your medical team, Explore consultation options. Heart rhythm symptoms require appropriate clinical assessment.

Does a skipped beat mean the heart actually stopped?

Not necessarily. One possible explanation is a premature beat followed by a pause and a stronger subsequent beat. The stronger beat may be what you notice most.

The American Heart Association explanation of PACs and PVCs describes premature beats arising in the upper or lower heart chambers. These are among the possible explanations for a skipped-beat sensation, but a sensation cannot identify which rhythm occurred.

Try describing the experience before naming it. “One hard thump every few minutes” gives different information from “a fast continuous rhythm that began suddenly and lasted twenty minutes.” You do not need medical vocabulary to give a useful account.

Why might you notice palpitations more at bedtime?

In a quiet room, there are fewer distractions from bodily sensations. Noticing the heartbeat at night does not necessarily mean the underlying rhythm only occurs then. Equally, symptoms that disrupt sleep should not automatically be dismissed as increased awareness.

Sleep loss, stress, alcohol, nicotine, excessive caffeine, and some medicines can contribute to premature beats or palpitations in susceptible people. The relationship varies; one cup of coffee should not be assumed to explain every episode.

Look for a repeatable pattern without trying several changes at once. Note evening alcohol, energy drinks, late exercise, and poor sleep. Bring the information to your clinician rather than using it to diagnose yourself.

Our guide to when to stop drinking coffee before bed discusses caffeine and sleep timing. Improving sleep can be worthwhile while the separate question of recurrent palpitations is assessed.

Can anxiety cause palpitations?

Anxiety and heightened arousal can increase awareness of the heartbeat. Palpitations can also make someone anxious. The two can reinforce each other, but that does not establish anxiety as the original cause.

Tell your clinician if fear is causing repeated pulse checks or avoidance of sleep. Ask how to address that distress while completing any appropriate medical investigation. Feeling worried should neither be treated as proof of a dangerous rhythm nor used to dismiss the symptom.

Once you have agreed on a monitoring plan, follow that plan rather than checking continuously. Repeated measurements without a clear purpose can produce a large amount of data that is difficult to interpret.

Which tests may help?

An electrocardiogram, or ECG, records electrical activity in the heart. A short recording may identify a rhythm problem present at the time, but intermittent symptoms may require longer monitoring.

The NHLBI overview of arrhythmia diagnosis describes ECGs and additional investigations. Depending on the history, the clinician may consider a portable monitor, selected blood tests, or imaging of the heart.

Ask how the monitoring period matches your symptom frequency. A symptom that happens several times a day presents a different recording opportunity from one that occurs once a month. If you are given a monitor, follow instructions for marking an episode and recording what you were doing.

What if the office ECG is normal?

A normal recording is useful information, but it does not document a rhythm that happened hours earlier. Your clinician will decide whether the history warrants additional assessment or whether reassurance and follow-up are appropriate.

If you have a wearable recording from an episode, save the original trace and the time. Consumer devices can sometimes add information, but automated labels are not a final diagnosis and recordings can contain artifacts.

Our article on normal blood pressure with a high pulse explains why blood pressure and heart rate answer different questions. A reassuring blood-pressure number does not identify the cause of an irregular-beat sensation.

What should you bring to the appointment?

Bring a short timeline, a medication and supplement list, and any relevant recordings. Include decongestants, inhalers, stimulants, and products marketed for energy or weight loss. Do not stop prescribed treatment without advice.

Ask what the most likely explanations are, whether the symptoms were captured, and what should prompt an earlier review. The aim is a clear plan that addresses both the medical question and the disruption to your daily life.

Want help building a more manageable health routine? Explore One-on-One Consultation Options for educational support alongside your medical care.