I just got back from the Dr and stumbled on this thread.  Had the same symptoms minus the fever & s/t.  Dr said it's a severe cold, possibly leading to bronchitis, but because of the lack of throat irritation/inflamation it's most likely just a bad cold.  I've had the cough for about 2 mos though so he thinks that might be asthma related so I'm also on an inhaler.  Coupled with my diabetic meds, I'm gonna need a pill organizer by tonight.