Nausea without appetite and lack of energy may be related to gastrointestinal disorders, liver function impairment and other diseases, in addition to women of childbearing age should also consider whether there is an early pregnancy reaction. 1. Gastrointestinal dysfunction: improper diet or catching a cold or prolonged sedentary, bedridden and other factors can cause gastrointestinal peristalsis slowed down, thus leading to gastrointestinal dysfunction, digestive dysfunction and thus cause nausea without appetite and lack of energy performance. Patients can improve the symptoms through appropriate exercise, oral gastric tablets, mosapride citrate, domperidone and other drugs. 2. Liver function damage: For patients suffering from chronic viral hepatitis, alcoholic liver disease or recently taking drugs that harm the liver, liver function damage may occur, resulting in nausea, loss of appetite, lack of energy symptoms, may also be accompanied by abdominal distension, yellow urine and other manifestations, you should go to the hospital in a timely manner to conduct a liver function test to clarify the cause of the disease. 3. Early pregnancy reaction: women of childbearing age in the early stages of pregnancy due to the influence of estrogen and progesterone, can also appear nausea, no appetite, lack of energy and other symptoms of early pregnancy reaction. This can be clarified by checking the blood or urine for human chorionic gonadotropin (HCG). Of course, there may be other reasons for the above symptoms. If the above symptoms persist, it is recommended to go to the hospital for a systematic examination to identify the cause and then treat the symptoms.