Pain in the region of the heart and originating there. It might run into the arm or the shoulder, often on the left side. The pain generally comes on account of strain exercise or fatigue. The pain is constricting because there is a sudden shortage of blood supply to the heart muscle. An increase in the severity of the pain or an increase in the frequency of the pain should be a sign for immediate professional consultation and great care. A condition with symptoms that are very liable to be mistaken for angina pectoris is the cause of great mental anguish to many men, especially youngish men, who think they have got the true angina. There is pain in the region of the heart, palpitation and sometimes pain down the left arm. Emotions bring on the attacks in men and women. Paroxysmal pain, caused by effort and other stimuli, is the cardinal feature of angina pectoris. There is constancy in its pattern. It is more common on the left than the right side of the chest and tends to spread cent