6Muscle Strain
Sometimes, muscle strain around your lungs would be the cause of chest pain. In this case, you might feel tenderness or stiffness around the affected areas, which can be worsened with movements. It might be caused by a bruised or strained chest muscle when you did not lift something heavy correctly. While this is not a medical emergency, you need to take rest and apply some home remedies to speed up the recovery. In case your pain does not improve or there is any damage with the pectoralis major, the largest muscle in your chest, make sure to visit your doctor as soon as possible. [6]
