The ability to feel the heart beating significantly is called palpitations, also called panic, and is generally considered to be related to the rhythm and rate of the heartbeat. Many heart diseases have the feeling of panic without specificity, and even healthy people may have panic, such as being frightened or emotionally excited, because there is no specificity of panic, so it is necessary to consider which disease it is in combination with accompanying symptoms. If it is accompanied by dizziness or shortness of breath, it may be tachycardia or atrioventricular block, which can be further diagnosed by electrocardiogram; if it is accompanied by chest tightness or pins and needles pain in the precordial area, it may be narrowing of the lumen caused by coronary artery atherosclerosis or angina pectoris; hemorrhage or heavy sweating may also lead to panic because of insufficient relative blood volume, which is a compensatory activation of sympathetic nerve; if it is accompanied by weight loss, irritability and excessive sweating It may be hyperthyroidism, and T3 and T4 can be checked to further confirm the diagnosis; sometimes the sudden rise of blood pressure may also feel the heart beating obviously, and the symptoms can be relieved after the blood pressure falls back to the normal range.