Recently I was visiting a friend in the hospital and since then I have had a cough (not producing anything), feeling of phlegm or mucous or something in my thorat causisng me to keep clearing it. I have had headaches that radiate down into my arm and neck and chest. Now my chest is starting to hurt. What are the symptoms of pneumonia? Would a normal PFT rule out pneumonia? Would I have a fever? I hear noises and feel something in my chest when I breath.