Sick as hell

I've spent the last week with flu-like symptoms, or a particularly strong cold. On several days, I didn't hardly do anything except sleep, and I haven't had much appetite. The doctor checked for strep, but that came back negative, so I suppose it's a virus. I went for a run last Sunday - the day before I started feeling sick - and I wonder if that did me in. It was a fairly nice January day for Denver, with temperatures in the upper 30s, and when I stepped out the front door to check the temperature, I didn't even feel a breeze, so I didn't cover my ears. That was a mistake, because there was a breeze, particularly on the run back home. My ears were freezing. Also, in addition to 20 minutes of easy jogging, I ran 1 very fast mile around the track at Green Mountain high school. That's 6 minutes of sprinting, and consequently, 6 minutes of pretty cold air pounding on my throat and bronchial tubes. It was my throat, bronchial tubes & ears that started bothering me the next day.