Why do I keep getting sick?

Is there a reason? I keep trying to be zen about it and "experience the feelings" of being sick, but man, since I've moved to Dallas I have been sick a zillion times. Is it the pollution? The allergies? Am I too busy? I'm supposed to be doing a hot yoga challenge, but I have a sinus infection...and two weeks ago, I had a stomache virus that totally ruined my favorite mexican restaurant! Wow, I'm whiny today. I should delete this.