When the heart beats too fast, it may not pump enough blood to the rest of the body. As a result, the organs and tissues may not get enough oxygen. In general, tachycardia may lead to the following signs and symptoms:  Sensation of a racing, pounding heartbeat or flopping in the chest (palpitations) Chest pain Fainting (syncope) Lightheadedness Rapid pulse rate Shortness of breath  Some people with tachycardia have no symptoms. The condition may be discovered when a physical exam or heart tests are done for another reason.
heart beats fast  may pump blood rest body  result  organs tissues may oxygen  general  tachycardia may lead following signs symptoms:  sensation racing  pounding heartbeat flopping chest (palpitations) chest pain fainting (syncope) lightheadedness rapid pulse rate shortness breath  people tachycardia symptoms  condition may discovered physical exam heart tests reason
tachycardia