I have had flu like symptoms since Sunday -fever, severe coughing up of clear thick mucus, body aches and chills. I went to the clinic Monday and the doctor gave me Levofloxacin for five days. Now, my fever and chills and body aches are gone now it's just my coughing, I'm cough so hard I end up gagging and vomiting thick clear mucus and it leaves me feeling a bit fatigued and nauseous and without an appetite and when I inhale, it feels like I'm inhaling lots of air in my throat and that makes me cough more. I would like to know why am I having the nausea, severe coughing bits that leads to vomiting thick clear mucus and why does it feel like I'm inhaling lots of air? Is this added flu symptoms or bronchitis or perhaps whooping cough or asthma?