Influenza A may cause symptoms such as cough, cold and dizziness, but the symptoms may vary due to the differences in the organism. Influenza A, or influenza A (H1N1), is a relatively common flu virus. When suffering from Influenza A (H1N1) disease, it can have a serious impact on the lungs, causing the patient to experience symptoms such as abnormal breathing, coughing, chest pain and chest tightness. After suffering from Influenza A (H1N1) disease, the patient’s resistance will be reduced and he or she will be prone to cold symptoms such as fever, dizziness and aches and pains. In addition, a very small number of patients may also develop asthma and heart failure. When the body appears uncomfortable symptoms, it is recommended to go to the hospital for examination and diagnosis in a timely manner, under the guidance of a professional doctor to carry out targeted treatment, to be able to control the development of the disease in a timely manner.