Having a pain in your chest can be scary. It does not always mean that you are having a heart attack. There can be many other causes, including Other heart problems, such as angina Panic attacks Digestive problems, such as heartburn or esophagus disorders Sore muscles Lung diseases, such as pneumonia, pleurisy, or pulmonary embolism Costochondritis - an inflammation of joints in your chest Some of these problems can be serious. Get immediate medical care if you have chest pain that does not go away, crushing pain or pressure in the chest, or chest pain along with nausea, sweating, dizziness or shortness of breath. Treatment depends on the cause of the pain. To rule out cardiac issues. Get a 2D echocardiography & TMT done Left fascicular block is a conduction block in one half of your hearts electrical circuit but this is very common and does not usually cause a problem and does not need treatment. It may be caused by diabetes or a viral infection or any local myocardial damage so I will advise you to undergo for the cardiac evaluation to rule out any underlying Cardiac disease and if all tests are normal then keep a follow up of regular ecocardiography and ECG every year two monitors any development