Three common descriptions of<unk> are "flip-flopping" (or "stop and start"), often caused by premature contraction of the atrium or ventricle, with the perceived "stop" from the pause following the contraction, and the "start" from the subsequent forceful contraction; rapid "fluttering in the chest", with regular "fluttering" suggesting supraventricular or ventricular arrhythmias (including sinus tachycardia) and irregular "fluttering" suggesting atrial fibrillation, atrial flutter, or tachycardia with variable block; and "pounding in the neck" or neck pulsations, often due to cannon A waves in the jugular venous, pulsations that occur when the right atrium contracts against a closed tricuspid valve.<unk> associated with chest pain suggests coronary artery disease, or if the chest pain is relieved by leaning forward, pericardial disease is suspected.<unk> associated with light-headedness, fainting or near fainting suggest low blood pressure and may signify a life-threatening abnormal heart rhythm.<unk> that occurs regularly with exertion suggests a rate-dependent bypass tract or hypertrophic cardiomyopathy. If a benign cause for these concerning symptoms cannot be found at the initial visit, then ambulatory monitoring or prolonged heart monitoring in the hospital might be warranted. Noncardiac symptoms should also be elicited since the<unk>  may be caused by a normal heart responding to a metabolic or inflammatory condition. Weight loss suggests hyperthyroidism.<unk> can be precipitated by vomiting or diarrhea that leads to electrolyte disorders and hypovolemia. Hyperventilation, hand tingling, and nervousness are common when anxiety or panic disorder is the cause of the<unk> .
Palpitations
Tachycardia
Bradycardia
Hyperthymesia
Orthopnea
Chest pain
Apnea
Bigeminy