The causes of dizziness and lack of appetite are many: First, if the disease is infectious, dizziness and nausea will occur, and then there will be no appetite or appetite, such as upper respiratory tract infection, because the stimulation of the brain nerve by the toxin secreted by the virus will cause dizziness and also cause the patient to have fever and therefore no appetite. Second, cerebrovascular diseases, such as cerebral blood supply deficiency and cerebrovascular stenosis, can cause dizziness and loss of appetite. Therefore, there are many reasons for dizziness and lack of appetite. In physiological cases, such as early pregnancy, many women have early pregnancy reactions and may experience inability to eat or drink, lack of appetite, nausea, vomiting, dizziness, etc.