Patients with panic and chills can be caused by many reasons, mainly as follows: 1. cold and fever: because of the phenomenon of chills before the fever, they will feel chills, and at the same time, because of the increased heart rate caused by infection, they will also have symptoms of panic. 2. hypothyroidism: patients with hypothyroidism will have fear of cold, mental discomfort, palpitations and discomfort. 3. diabetic hypoglycemia attack: hypoglycemia will occur when the heart rate increases significantly. The patient may have panic and chills. 5. arrhythmia: tachyarrhythmia can cause panic and discomfort. 6. other: when there is cardiovascular neurosis or anxiety disorder, the patient has more subjective symptoms and can have panic and chills. Specific need to go to the hospital to do a detailed examination to clarify the cause of the disease.