Having been running happily all year virtually injury-free, in the last 3 weeks or so I've developed a pain in my left knee (but that's an old condition brought back to the surface by recently running down Ben Nevis in big boots & climbing gear,) and a sort of soreness in both my legs below the calf muscles and above the Achilles. My legs got really stiff there after an 8 mile run on Sunday to the extent that after sitting down for an hour or so after the run, I had trouble walking correctly for a couple of minutes until the stiffness subsided
Anyone else had this, and any ideas on what I should do about it ?