Intestinal distress

I really, really didn't want to do this run today. My stomach was achy, I felt out of sorts and tired. I started to run and felt great! It felt like just the thing I needed. Then I felt like I was going to vomit. I finished the mile and ran to the bathroom. I didn't actually throw up, but didn't feel any better afterward. I think its the remainder of the stomach virus thats going around.