I have been able to complete week 6 day 2 (jog 10 min walk 3 min & jog 10 min). I CANT however get they week 6 day 3 (jog 22 min). I am not sure if it's in my head or that I am physically not able to do it. I start off good than my calves feel heavy and my shins start to hurt. I am running on a treadmill at 0% incline. Any suggestions are greatly appreciated. I have my 1st 4mile race on March 5th. thank you!