drop over dead, runner

Not today!

I ran to second gate. On the way there, a little yappy dog decided to chase me. At first I laughed. But as he kept coming and then ran out into the road where he almost got hit by a truck, I got mad. The man in the truck looked at me as if to say, "Get your dog out of the road." Not my dog.
I tried waving him off with my hand. Finally the clinking sound of his collar faded away.

On the way back I got a sudden tightening in my chest. It felt like someone had just whacked me a blow to the back between the shoulder blades. I even looked behind me to make sure that didn't really happen. Nothing.
I wondered back and forth in my mind if this would be a good reason to stop. Meanwhile- I kept running.
After a while, the pain shifted lower into my left side. I sighed with relief. Must have just been a pocket of gas. I have heard of runners, in very good shape, killing over right there on the road.
Well, not me baby. Not today.