Jeremiah and I ran two miles last night and in the middle of our run, my Achilles area started hurting on the outside of my left leg. Since last night, it's gotten worse and now it's not only in my Achilles, but it stretches about halfway up the back of my calf.
It doesn't feel injured, maybe just strained. It feels like I have a 'charlie horse' in my calf that won't go away. I have stretched it and stretched it, used my stick to roll it, and nothing. It's not unbearable, just annoying.
Anyone have any ideas as to what this could be? What muscle? What tendon? Anything?