I started out with pleurisy pain - very severe - then the walk-in clinic did a chest x-ray - said I had pneumonia. After 3 rounds of anti-biotics - lungs were clear, but pleurisy still there. Then was sent for a CT scan. They said I had an infiltrate on my left side of lung. Now have an apptm t with pulmonologist. Pleurisy still there, better, but still can t take a BIG DEEP BREATH without it hurting. I feel fine in all other respects. Obviously, worried because Dr. said, we want to rule out cancer . I do not smoke and otherwise healthy (age 67)