Dang it! I'm sick!

I haven't been sick in a very, very long time. Last week, I got a slight sore throat. Today, I woke up and my chest was tight, I was congested and wheezing a little from airway constriction. It is the middle of summer. What is this?! I've been promising my nephew that I'd take him to the pool and now I'm too sick to go. I had to cancel the night walk that the 25 year old wanted to take with me. He could tell that I was congested on the phone and knew I wasn't faking. Oh well.