I ve been sick for 4 days now. It started with a fever, aches, chills, fatigue. On the third day it turned into a cough with some mucous. Day 4 and the fever, aches, chills, and severe fatigue is gone, but now I have a bad cough. I am taking Mucinex DM and still coughing quite a bit. I feel like it may be loosening the mucous because you can hear it gurgling in my throat after I cough, but nothing is really coming up. Not sure if I had the flu? Or could it be bronchitis?