I ve been sick for almost two weeks now, what started as a cold with stuffy nose, sore throat, and congestion, but on the weekend it got worse, and now I have this awful cough along with stuffy nose and sore throat, I end up missing work, and I m starting to wonder if I might have the flu, even though I had gotten a flu shot like two weeks ago, this cough is bad and it s keeping me up at night so I can t sleep, I ve had a minor headache, even some nausea, could it be that I have the flu? or is it just a bad cold? and should I see a doctor for some medicine?