The symptoms of arrhythmia or irregular heart beat include palpitations, pounding in the chest, dizziness, fainting, chest discomfort, shortness of breath, and fatigue.
Irregular heart beat is caused by a number of factors. The main factors causing irregular heart beat include coronary artery diseases, heart valve malfunction, thyroid diseases, consumption of caffeine, alcohol and excessive smoking, high blood pressure, malfunction of the heart muscle, injury suffered from a heart attack, and electrolyte imbalances in the blood system. Electrolyte imbalances mean changes in the level of sodium or potassium in the blood from the required level.
Irregular heart beat can also be caused by imbalances during the healing time after undergoing a heart surgery. It should also be noted that irregular heart rhythm can also occur in people with healthy normal hearts.