High blood sugar does not usually cause palpitations manifestation, tachycardia, bradycardia or other cardiac arrhythmias, can appear palpitations, palpitations recommend timely medical attention. Palpitation is a kind of panic feeling of self-conscious heart beating, when feel the heart rate accelerated inappropriate, some diseases will appear palpitation phenomenon. The common causes of palpitations are cardiac neurosis, abnormal heart rate, irregular diet and over fatigue. 1. Neurosis: If palpitation occurs and accompanied by pallor, the usual health may be caused by neurosis. Common manifestations include palpitations, dyspnea, pallor, pain in the precordial area and so on. 2. Abnormal heart rate: if the patient has tachycardia or frequent premature beats, palpitations may also occur. 3. Irregular diet: Increased blood flow in the stomach and intestines after meals can lead to insufficient blood supply to the heart and cause palpitations. Excessive dieting leads to hypoglycemia, which can also cause palpitations. 4. Excessive fatigue: Palpitation and panic may occur when staying up late for a long time or under great mental stress. Patients who have had palpitations should prevent palpitations from the details of life, such as scientific diet, adequate sleep, appropriate exercise, calm mood, and it is recommended to go to the hospital to find out the cause of the disease.