The causes of heartburn and cough are lung infection, heart disease, and severe heart failure. Details are as follows: 1. Lung infection: If lung infection occurs, patients will often have symptoms of coughing, and when severe coughing or coughing at night has affected sleep, they may have symptoms of coughing and panic, but in addition to coughing, lung infection will also have symptoms of coughing up sputum and fever. 2. Heart disease: If only panic and coughing occur, they may also be caused by heart disease, such as the occurrence of heart Premature beats, patients can show panic, and individual sensitive people will also have cough when premature beats occur. 3. Severe heart failure: Severe heart failure diseases, such as heart failure, heart enlargement, cardiomyopathy, hypertensive heart disease, and even atrial fibrillation and arrhythmia, can also show these symptoms of panic and cough.