At the beginning of last quarter, in January, I got sick with the same flu that everybody had. I had it for almost a month before almost all of the symptoms were gone, but the cough that came with it stayed. It is now almost four months later and I still have a lot of flem (or mucus) production, and often hack up very productive coughs. I was wondering if I am still sick from that flu, or if I have some other problem like allergies, etc... Any suggestions?