Coughing and sputtering

Yesterday, in the mid-afternoon sunshine, I ran up to the track and had in mind to run 5k at 4:10/k speed. I ran slower than this and accidentally stopped short at 4.8km. I mentally took a vacation and lost track of my last km lap count. I completed the 4.8km in 20:37 and then walked a lap and ran 2 X 200m in 38"and 36". I'm still suffering from a slight cough, which worsens immediately after a run right now, but was glad to get this small work out in.