My left side of my back hurts even when i breath?

Back pain: Upper back pain worse with a deep breath,especially if a cough is present, may be an early sign of pneumonia involving the base of the lung. Other possible causes include muscle strain or inflammation, kidney stone,early shingles,pleurisy or rib pathology. See your physician if symptoms persist or worsen. In the meantime, heat or cold applications, and Advil or Aleve should help the discomfort.