Heartbeat pumping. Tell me what is this?

Hi, its called Palpitations. Often the cause of your heart palpitations can't be found. Common causes of heart palpitations include: Strong emotional responses, such as stress or anxietyStrenuous exerciseCaffeineNicotineFeverHormone changes associated with menstruation, pregnancy or menopauseTaking cold and cough medications that contain pseudoephedrine, a stimulantTaking some asthma inhaler medications that contain stimulants Occasionally heart palpitations can be a sign of a serious problem, such as an overactive thyroid gland (hyperthyroidism) or an abnormal heart rhythm (arrhythmia). Arrhythmias may include very fast heart rates (tachycardia), unusually slow heart rates (bradycardia) or an irregular heart rhythm. Consult Physician...