hi, thank you for providing the brief history of you. A thorough cardiothoracic assessment is advised. As the pain is persistent from past few months I will advice to take up a thorough cardio thoracic assessment if it is on the middle of the chest or above the abdominal region. You may be recommended x-ray or any other test based on the assessment If the pain is below the xphisternum then I will advice to take a thorough abdominal assessment and an Diagnostic ultrasonography will be advised to see the soft tissue status. Also, if the pain is near to the rib joining the sternum then it could be costochondritis and may need further assessment. I will still advice to undergo atleast a chest x-ray to check the soft tissue and bony status. No pain persists for longer months until there is something to understand about the physiology. Also, with breathing exercises if the pain subsides then you many not have to worry, as certain times due to weakness of the inter costal muscles there leads to pain. As no chest congestion, cough cold, abdominal pain is mentioned by you I suspect it to be a costochondritis and with breathing exercises you should respond well. Possibly learn the proper breathing exercise techniques from a physical therapist once by which you can follow at home and in 2-3 weeks of time you should be fine. regards Jay Indravadan Patel