The pain in the right side of the chest when angry may be caused by the following conditions: 1. The pain may be caused by irritability when angry, the rise and fall of the thorax is relatively large, it may be caused by forceful cursing or slightly inattentive movements, which leads to strain of the muscles and soft tissues on the right side of the chest. 2. The pain may occur or worsen when breathing deeply or moving things with force. 3, it may be an acute heart attack caused by emotional stimulation, which usually occurs in patients with hypertension, diabetes and coronary heart disease, most commonly angina pectoris or myocardial infarction.