Although I ran on the track team for two years in high school and another two years as of late, I had never had a shin splint, which supposedly plagues some new runners. I didn't even know what one was. The simple answer: a bunch of things, but in my case most likely an irritated sheath of muscle/tendon around my lower leg bone.
More than a month ago, my left shin became sore when I ran, and the more I ran on it, the more the tightening and pain spread to the back of my lower leg (calf). I ran two races on this leg, because the sensation only made an apperance every other time I ran. And pretty much every other training run would have to be slowed or stopped because I did not want to completely blow out my leg.
Lately, I have been foregoing weekend runs and replacing some running with the elliptical machine and circuits, so I think by now I'm nearly fully recovered. I just find it very weird that this came about for no apparent reason.
By the way, I do acknowledge that things have been a little quiet in this blog lately. With the summer weather comes fewer races. I am still running regularly (just did 8 miles yesterday and 6 a few days before that), though I've also been "livin' it up," enjoying my summer vacation for the most part.