Hyperthyroidism may be caused by low potassium, anemia, abnormal liver function, etc. Symptomatic treatment can be taken according to the cause. 1. Low potassium: low potassium is usually caused by insufficient potassium intake and increased potassium discharge, which may lead to symptoms such as fatigue, nausea, vomiting and abdominal distension, etc. In daily life, attention should be paid to eating foods with high potassium content. 2. Anemia: Anemia is usually caused by decreased production of red blood cells and excessive destruction of red blood cells, which may lead to dizziness, tinnitus, headache and other symptoms, and iron can be taken as medicine. 3. Abnormal liver function: abnormal liver function is usually due to hepatitis virus, cytomegalovirus and other reasons, there will be nausea, anorexia, fatigue and other symptoms, you can take glycyrrhizic acid preparation, bicyclic alcohol and other drugs. It is recommended that patients should go to the hospital for examination in time when the above symptoms occur, and be treated under the guidance of the doctor, and do not take medication at will.