I started running after I discover I am putting a lot of weight.When I started running my distance keep on increasing from 2.5 km to 5.0 km.But from few days I am unable to complete even 2.5 km.There is the pain in calf muscles and what I do is jog continuously and when there is a break in momentum I stop.So, my question is why there is a drop in stamina? I have a 400 m track near my locality and i started with 5 rounds and gradually increasing with half round per day and i have arest day on sunday. It was like day 1:5 rounds day 2:5.5 rounds day 3:6 rounds day 4 :off day 5:6.5 rounds going on and on day appart from sunday i had a day off.
I am new here if I didn't follow the question guidelines so please ignore.