The causes of dizziness, chills, nausea and vomiting in patients are mainly considered as follows: 1. If the patient is middle-aged or elderly, it may be caused by insufficient blood supply to the brain, especially if the patient is sleep deprived, emotionally agitated or tired, etc., which may easily induce cerebral vascular spasm and lead to dizziness, nausea, vomiting and coldness in patients. 2. The patient’s dizziness, chills, nausea and vomiting may also be caused by acute gastroenteritis or infectious diseases that lead to the measurement of body temperature. For example, patients in the air-conditioned environment leading to cold blood vessels in the head will spasm, leading to cold in the gastrointestinal tract will appear the symptoms of fear of cold, nausea, and desire to vomit.