What is the weakness of the whole body that the head dizzy returns a responsibility

Dizziness, weakness can measure body temperature, if the temperature rises, it is caused by fever, if the temperature is normal, it can be considered as anemia, hypokalemia, hypothyroidism, hypertension, hypotension, hypoglycemia, etc., because the cause is more complex, it is recommended to go to the hospital in time for a clear diagnosis.