I have pain when running and afterwards for a good hour. First it was just one leg. Now both. It is in the inside of my leg down the bottom half of my calves...it's pretty sore to run on and totally killed today's run which was my W3 day 1 run. I'm really bumed out about it, this is the first run I've not really enjoyed. I really struggled, even at the short distances...and the 3 min run I did finish but it killed me. I have run longer distances than that before though. So two questions please folks...do you know what the pain might be that I'm getting...and do you ever have days you find really unexpectedly hard?