What’s wrong with your heart racing and your body feeling weak?

Suddenly the heartbeat is accelerating and the body has no energy, which may be caused by hypoglycemia, cardiac arrhythmia, heart failure and other diseases.
1. Hypoglycemia: due to genetic or medication factors, the serum glucose level in the body decreases, the whole body cellular energy supply is insufficient, and there is a lack of energy. At the same time, it causes the sympathetic nervous system to be excited, resulting in symptoms such as sudden rapid heartbeat, anxiety and excessive sweating.
2. Cardiac arrhythmia: mostly due to various organic heart diseases, the ventricular rate is too fast, and the patient will have a sudden rapid heartbeat accompanied by weakness, sweating and other symptoms.
3. Heart failure: due to myocardial damage, myocardial diastolic contraction dysfunction leading to accelerated ventricular rate, or due to cardiac output is not enough to maintain the tissue metabolism leading to insufficient systemic blood supply, resulting in a sudden rapid heartbeat, panic, weakness, dyspnea and other symptoms.
In addition, there are other causes of sudden rapid heartbeat and lack of energy, such as electrolyte disorders, high blood pressure and other diseases. It is recommended that the patient should go to the hospital in time for examination and treatment as prescribed by the doctor after the cause is clarified.