Wasn't the best start this week, unfortunately.

- Monday — Rest
- Tuesday — This was my first morning run as I had something in the evening. Started well, but after a mile my calves starting hurting more than usual so I stopped. Was previously planning to get new shoes on the upcoming weekend but now planned to get them earlier - my current ones were clearly going to continue to cause problems.
- Wednesday — Found a swimming pool but happened to turn up just when an unscheduled 2-hour water polo lesson was starting. Couldn't really run because of yesterday so wrote off the day.
- Thursday — Got running shoes. I tried them when I got home and could feel they were a massive improvement but I could only do about half a mile due to Tuesday's issue. Had also walked about 5 miles that day which didn't help.
- Friday — Rest
- Saturday — Another write-off. I had put myself in a position where I only had 30 minutes sleep the night before and had a commitment in the evening so had to spend the useful part of the day snoozing. Fail.
- Sunday — I ended up doing just 2 miles as I didn't want to push it. As it turned out, this was really easy to do and Tuesday's issue had cleared up. Next week is looking more promising now.
Try a change in running style. Pose running might help you out but it takes a little more cardio to pull it off due to high cadence.
Get a shoe with less padding. Try the Vibram Five Fingers.
Also, Google Authors@Google and search for "Born to Run". You want the conference where the speaker is wearing a long sleave black shirt. Or read the book :)
Ben