Feeling your heartbeat when lying down

Lying still removes daytime distractions, and a position change can make the chest movement feel more apparent. Caffeine, nicotine, alcohol, dehydration, stress, poor sleep, and strenuous activity may trigger palpitations. Anxiety, burnout, depression, or insomnia can heighten awareness without proving that the heart is abnormal. A fast or irregular rhythm may also occur with atrial fibrillation. Thyroid problems, long COVID, chronic fatigue syndrome, and alcohol withdrawal are other possibilities that need context rather than self-diagnosis.

Note whether the sensation is fast, pounding, fluttering, or irregular, how long it lasts, and whether it follows food, alcohol, caffeine, exercise, or stress. Rest, drink water if appropriate, and try slow breathing while sitting or turning onto your side. Avoid abruptly stopping prescribed heart or thyroid medicines. Arrange a routine review for repeated episodes, especially if they disturb sleep, and bring a list of medicines, supplements, and stimulants.

Call emergency services for palpitations with chest pain, severe breathlessness, fainting, collapse, or new confusion. Seek prompt assessment for a sustained very fast or clearly irregular heartbeat, weakness on one side, or repeated dizziness. A clinician may check your pulse, blood pressure, an electrocardiogram, and blood tests depending on the history.

How should I record the rhythm and duration of an episode? Could my sleep, thyroid, alcohol, medicines, or recent illness be contributing? Do I need an electrocardiogram or monitoring?