After struggling for so long with a chronic "syndrome" (posterior shin splints) that I scarcely remember what it feels like to just run freely, without fear or reservation, I was finally able to get through a couple mile run pain-free on Saturday. It felt good. My speed was good. My breathing was all right. It went pretty well.
Just to be safe afterward, I took Sunday off, and only rode to the movie theatre with my wife to see True Grit (good movie; I recommend it). Today is Monday, however, and as the day has worn on, I've found that I am now having some soreness along my peroneal tendon, on the outside of the my lower leg. So, essentially, the pain/tenderness I was feeling from running a few weeks ago on the inside of my lower tibia, along the posterior tibialis tendon, has moved to the outside of the same leg. I'm a little concerned about it, but I'm maintaining a wait-and-see attitude.
The soreness along the peroneal tendon doesn't seem to occur under the same conditions as the previous posterior tibialis pain (i.e., during eccentric contraction just after forefoot strike), but I'm not willing to push it. Straight-legged calf stretches bug a tiny bit at first, but then it's fine for more stretching. I've noticed it since late yesterday after returning from the movie.
I'm tired of these sorts of issues, which now have forced me to all but give up on the prospect of running the full Colorado Marathon. I'm now having to face the prospect of dropping to one of the shorter races, and if things continue in this way it may be best simply not to race at all. Injuries don't always make sense, I guess. They just always suck.