Hepatitis B nausea and vomiting are GI symptoms that need to be considered if you are in the active stage of hepatitis B, you will be prone to vomiting, loss of appetite, bloating, fatigue and other symptoms. In addition, it is also possible that hepatitis B is not active, but with hepatitis A or E overlap infection, there will also be nausea, fatigue, aminotransferase significantly elevated and other symptoms. 1. In the active stage of hepatitis B: chronic hepatitis B is not always in the active stage, sometimes it is stable and sometimes it is active. If the aminotransferase activity is high when it is in the active phase, the patient will experience gastrointestinal symptoms such as vomiting, loss of appetite, bloating and fatigue. 2. Overlapping infection with hepatitis A or hepatitis E: Because hepatitis B is not active, if hepatitis B is not active but overlapping infection with hepatitis A or hepatitis E, it will also cause obvious gastrointestinal symptoms, like nausea, fatigue, yellow urine, and obviously elevated transaminase levels. It is recommended that hepatitis B patients with symptoms of nausea and vomiting have their liver function checked, as well as testing for hepatitis A and E antibodies to rule out the possibility of overlapping infections. If the situation is more serious, you can follow the doctor’s instructions under the guidance of medical treatment.