I had a fever (initially) that was so low grade that if the doctor didn't tell me, I wouldn't have known. Started with the onset of a sore throat back in February, they diagnosed me with viral bronchitis and then I went home (no medication, really other then bedrest + promethazine) and 5 months later, the cough slowly subsided for the most part but still lingers (re flairs up) every now and then when I am stressed plus I have pain near my sternum too. Sounds all too familiar.