In view of your symptoms and your history, it is possible that there may have been some complications, such as abscess. To check this, you need to do some tests, including radiation scans such as regular X-rays, scan CTs, kidney function, and so forth. You may also need to check heart enzymes and electrolytes panels. In the meantime, you need to begin to supplement your veins to compensate and improve your breathing function.
Doctor, severe chest pain and difficulty in breathing, coughing, diagnosed with pneumonia a few weeks ago and treated with antibiotics, but the symptoms didn't improve.