activity app only partially working on apple watch and iPhone

My activity app was working just fine until about three days ago. Now I have noticed that it tracks my standing, but not my workouts or even the red 'movement' ring. It tracks my workouts, as I put them in, counting the time and humidity and all that, but there is NO tracking of any of my movements, not the red or green ring have moved in the last three days. It doesn't make sense to me...any suggestions? I don't have a new iPhone, my watch is paired with my iPhone, and the app is on both my watch and iPhone, it just doesn't track my movements anymore. I have all notifications on, automatic setting. I turned them off and back on again...still nothing. Please help.