Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of Coronary Heart Disease ?
    ### Response:
    A common symptom of coronary heart disease (CHD) is angina. Angina is chest pain or discomfort that occurs if an area of your heart muscle doesn't get enough oxygen-rich blood.
                
Angina may feel like pressure or squeezing in your chest. You also may feel it in your shoulders, arms, neck, jaw, or back.
    