I came down ill over the weekend with headache, nausea, severe fatigue and low grade fever- 100-101. I now have a very intense very dry rattling cough. Sometimes something will come loose in my lungs and I cough up long very stringy mucus. I have had bronchitis, and colds before but never anything like this... It s somewhat difficult to take a deep breath but I have attributed that to fatigue from all the coughing. Is this likely a common cold, flu, or something that I should get checked? I am feeling better but still tired and the cough is just so intense.