I Moved To A New City During A Very Cold,

I moved to a new city during a very cold, windy month and I've been since ever since (one month). Started with cold symptoms (sore throat, fatigue, runny nose/congestion). This last 1.5 weeks then I experienced 48 hours of extreme fatigue, vomiting. After this it gave way to the cold symptoms again. A week later I experienced what seemed to be a flu - I was bed ridden for three days with painful coughing, fatigue, loss of appetite, 103 degree fever, runny nose/congestion. I was prescribed Tamiflu at this time. Now I'm back to the cold symptoms (congestion, runny nose, coughing, throat pain, fatigue.) What could be wrong with me?