I've been on and off sick for about 3 weeks now with some sinus/head cold. Not enough to keep me home, but enough to make me miserable. It had just started clearing up (with the help of my wife, my first ever Tottie, and tons of clear, non-carbonated, non-caffinated) and the wife went down hard with a chest cold, complete with head congestion, coughy, achy, don't let me sleep throught the night medicine. Today is her first day back to work this week and the only thing that worked at all for her was sleep, sleep, some Advil cold/Sinus, Zicam, and more sleep.
Good luck. The difference between a rough cold and the Flu seems to be getting less clear lately.