What is the reason for the heavy head and dizziness?

Dizziness and brain swelling are common causes. 1. Neurological disorders, such as cerebellar lesions, brain lesions, brain trauma, epilepsy, autonomic nervous dysfunction, neurosis, etc. 2. Cardiovascular and cerebrovascular diseases, hypertension, coronary heart disease, hyperlipidemia, atherosclerosis, etc. 3. Ear diseases, such as otolith, Meniere's disease, etc. 4. Some other causes, such as fever, anemia, functional hypoglycemia, cervical spondylosis, depression, drug poisoning, etc., can cause dizziness. The above health science popularization knowledge can be used for reference. The specific situation needs to be examined in a regular hospital and judged by a professional doctor.