Love it when everything goes great , your running along , breathing well , nice pace going, good weather and you feel as though you could run for many miles , then comes along that day and you just feel out of it ,like your having to drag yourself along , your mind is saying "Oh stop now " but you battle on ..and to make things worse . its a Strong wind and your running in to it , then it starts raining , then your laces come undone ..!!