Tell your doctor that your back pains are continuing 4 weeks after you were treated with IV antibiotics. The chest x-ray should be done now rather than waiting a couple of weeks. If your pneumonia is continuing you will need further treatment. Pneumonia may cause
pleurisy, an inflammation or irritation of the pleura, the sac that holds the lungs. This can cause chest tightness and pain, which is felt more with deep breathing and coughing. The
pleurisy could be due to bacteria or viruses. Antibiotics will help a bacterial infection, but will not help a viral infection. Over time your body's natural defenses will clear a viral infection. A pulmonologist is the type of specialist to help with this type of lung problem.