Cold coughing mild fever chills vomiting

I have not taken any international travel in my life. From yesterday morning all of a sudden I had a running nose and some dry coughing. I rushed to local doctor who gave some regular medicines. Though the running nose slowed down but I have been having continues nausea and vomited twice yesterday and twice today. The vomit consisted mostly of cough. There are occasional spells of chills though there is no temperature. Also there are occasional headaches and fatigue. Should I be worried or is it just a normal flu symptoms. I had to take cab from my office to my home on Monday night and Tuesday night infact late at night at 12.30 am due to office work. Is it possible that I might have caught infection in the cab because as per the cab driver of Tuesday's ride, he had been to international airport for a drop just couple of rides before mine. I'm little worried about the symptoms. I have taken off from office for the last 2 days. But the symptoms are of little worry.