Chest Pain
When your respiratory system is working harder to breathe and take in oxygen, the muscle groups involved would become overworked. This leads to muscle exhaustion in your chest area, which feels like pain and tightness. You might experience a stabbing, sharp, and dull pain, which occurs around the parasternal (off-center) or sternal (center of the chest). This sign requires immediate medical attention to rule out heart problems. Chest pain is often an obvious sign of some issues with your lungs or respiratory system. [6]
