I've had a 'cold' for almost 2 weeks. It isn't getting better. I am fatigued. I have a dry, non-productive cough; I have a pain in the lower lobe of my right lung. My voice keeps going hoarse, off and on. I have had a low grade fever off and on, nothing high. It feels harder to breath than usual. My cough is loud and seems violent . Should I worry and go to a MD or wait it out? {I am 62 yo and work full time. I stayed home one day last week (Wednesday)and came home early today due to fatigue and the cough.}