1. It may be caused by insufficient blood supply to the brain. It is recommended to go to the hospital to check the brain Doppler.

2. It may be caused by blood lipids. It is recommended to go to the hospital to check blood lipids.

3. It is suggested to go to the hospital to check the hemorheology, because the blood viscosity may change the hemorheology.

4. It may be caused by hypoglycemia

5. Because of losing weight, exercise properly, eat more fruits and vegetables, eat reasonably, and don't lose weight indiscriminately.

6. Maybe the blood pressure has changed. I suggest you go to the internal medicine department to check your blood pressure. People nowadays have high blood pressure, mainly dizziness and numbness in the back of their heads. The youngest hypertensive patient I have ever met in the Department of Neurology of our hospital is 27 years old. It may also be caused by postural hypotension.

There are many reasons. Analyze it yourself and check it.