Some patients often report sudden panic attacks and weakness, and some may have attacks after strenuous exercise or when they are emotionally stressed. First of all, this symptom will occur when you are nervous, excited, angry or especially sad, which can be relieved by resting and relaxing. Secondly, metabolic diseases, such as hyperthyroidism and hypothyroidism, can cause panic attacks and weakness. In addition, anemia, moderate anemia, can also cause panic and weakness. When electrolyte disorders, hypokalemia and hyponatremia occur, panic attacks and weakness can also occur. The most important is heart disease, when coronary angina attack occurs, panic and weakness will also occur. Patients who suffer from panic attacks and weakness must go to the hospital to be diagnosed to rule out heart disease and achieve diagnosis and treatment.