Sweating, headache and dizziness may be related to vegetative nerve function disorder, or it may be caused by viral cold, hysteria and so on. 1. Phytoneurological dysfunction: this disease is a functional disease, mainly due to long-term poor living habits, or long-term mental and psychological trauma stimulation and other reasons. It can lead to neurological dysfunction, dysregulation of the autonomic nervous system, which may show cold and heat, sweating, headache, swelling and dizziness, and may be accompanied by localized skin numbness, itching and other symptoms. 2. Viral cold: usually caused by viral infection, when the body is attacked by the virus, it is easy to cause fever symptoms, in the process of temperature rise, especially when the body temperature is high, it is easy to lead to the patient’s cold and heat, sweating, headache, swelling and dizziness, and may be accompanied by nasal congestion, runny nose and other symptoms. 3. Dysthymia: clinically also known as dissociative disorder, belongs to a mental disorder, may lead to the patient to appear cold and hot, sweating, headache, swelling and dizziness and other symptoms, there is no organic lesions. It is often considered to be caused by negative life events. Sweating, headache and dizziness may also be caused by other reasons, and it is recommended that the patient consult a doctor as soon as possible to clearly diagnose the cause and then give targeted treatment.