heartbeat flutters when i lay down - Sports Zone
Atrial fibrillation (AFib) is a heart rhythm disorder. In a typical heart, a group of cells called the sinus node sends electrical signals that start each heartbeat. The signals go across the upper heart chambers to the AV node, where they usually slow down.
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Then the signals go to the lower heart chambers, causing them to squeeze and pump out blood. But in AFib, the signals in the upper ... A heart arrhythmia (uh-RITH-me-uh) is an irregular heartbeat. A heart arrhythmia occurs when the electrical signals that tell the heart to beat don't work properly.
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The heart may beat too fast or too slow. Or the pattern of the heartbeat may be inconsistent. A heart arrhythmia may feel like a fluttering, pounding or racing heartbeat. Some heart arrhythmias are harmless. Others may cause life ...
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The fast heartbeat may be discovered when a physical exam or heart tests are done for another reason. In general, tachycardia may cause these symptoms: Racing, pounding heartbeat or flopping in the chest, called palpitations. Chest pain. Fainting. Lightheadedness. Rapid pulse.
Shortness of breath. When to see a doctor Many things can cause ...