There are many causes of dizziness and general weakness, such as neurological diseases, cerebrovascular diseases, anemia, hypotension, hypoglycemia, cervical spondylosis, etc. are possible. 1, upper respiratory tract infection fever will appear dizziness, general weakness, need to monitor the body temperature. The body temperature is lower than 38.5 degrees, you can drink more water, physical cooling, etc. If the body temperature exceeds 38.5 degrees, you can take oral antipyretic drugs, antiviral drugs, etc. 2.Blocking occurs somewhere in the cerebral blood vessels, forming hypoxia, necrosis and ischemia, resulting in cerebral infarction, dizziness, weakness of limbs and headache, which needs to be clearly diagnosed by CT or MRI of the head in the hospital. 3, hypertension, inadequate blood supply to the brain, such as older people with vascular sclerosis; and local problems, such as problems with the cervical spine, not only appearing discomfort in the head and neck, but also the feeling of weakness in the limbs. 4, anemia is more likely to show dizziness and weakness. Have a routine blood test to see if you are anemic. You can adjust the diet and take ferrous sulfate oral solution and blood granules orally if necessary. 5, hypoglycemia can be relieved by drinking sugar water, eating the cookies and sugar cubes. Another condition may also be caused by abnormal blood pressure, if the blood pressure is low, you can take oral treatment of raw pulse drink. If the blood pressure is high, you can take oral medication to lower blood pressure. 6, chronic gastroenteritis, certain systemic diseases, psychological problems, etc. All may cause weakness of the limbs, dizziness, etc. Excluding the symptoms caused by exertion, you need to go to a regular hospital for examination and take treatment in a timely manner.