Could this be swine flu/H1N1?

Okay, so I'm not a germ freak in any way, and don't have a fear of swine flu. However, I was sick today and looked up the swine flu symptoms. All the sites said temperature, headache, muscle soreness, runny nose, cough, sore throat, tiredness, etc. I went black Friday shopping and was warmly dressed, but I went to an outlet mall at midnight. It was cold, and I was exposed to a lot of people. Then I rode horses for 2 hours in 54 or so degree weather in only a sweatshirt. I rode Sunday. So today, Monday, I stayed home sick. I slept most the day, and when I sat up after lying down, had a huge headache. (this is not unusual for me) My temperature has ranged from below average to a slight temperature. (97.9 to 99.5 degrees farenheit) My throat hurts and gargling salt water, cough drops, and other things haven't worked. My nose has been runny/stuffy as well. Could this be H1N1? Please only serious answers/advice.