I ran for 20 mins. Me. It was soooo weird - my legs and arms were just like a machine and when i felt heavy i just wiggled my hips more.
Played a kind of weird jogging game focussing on different things in turn...strong legs strong legs strong legs strong legs, then strong arms...then breathing, then relaxing shoulders - I couldn't stop when 20 mins came had to slow down gently and then...
Legs of lead lol
But i did it