I did some speed workouts yesterday. I'm not fast at the best of times but I ran relatively hard yesterday. It felt good at the time. The workout was on a treadmill and I stretched afterwards.
However, by last evening my shins were aching. I knew that I had pushed myself too much. I have never had shin splints before so this was quite disconcerting.
I'm taking today completely off and they're feeling much better but not 100%. I'm hoping they'll be fine for a workout tomorrow.
With the half marathon less than 1 month away I'm going to have to be smarter with my workouts. I now know that there's a fine line between pushing oneself to advance performance and going over the edge and jeopardizing the ultimate goal.