 [ Symptoms ] i just had flu and my cough will not go away i have had a mild fever for 10 days pain in left chestback when coughing also cannot take deep breath without a big coughing session [ Disease ] have u had a chest x ray if not u should i have had pluresy twice which is fluid arround the lungs it is uncomfortable and can not be cured just has to run it is course but having a chest x ray would rule out fluid in the lungs also