Damn left achilles has flared up. In truth this has been creeping up on me for a while now, but it is not showing the same symptoms as 'Classic' tendonitis. This time it appears to be sore at the base of the tendon where it connects to the heel, the tendon is not at all sore to the touch (not like the last time where any pressure was really sore).
The interesting thing about this is that it seems to be particularly intolerant of my fell shoes - just wearing them make the left tendon/back of heel area sore. So much so that even a walk in the woods (in fell shoes) reduced me to a limping, hobbling wreck all of which improved significantly when the shoes were removed and replaced with 'standard' footwear.
It is all the more annoying as these shoes were extremely comfortable for the first few runs. However I do not appear to be alone in this - one of our fellrunning posse suffers a similar affliction (same shoes, same sore heel). We did some digging around on the web and reckon that the condition may have been caused by brusing around the tendon area (caused by shoes), rather than a strain on the tendon itself.
Anyone else suffered anything remotely similar? Would like to try to avoid this problem in the future if I change my shoes for a different make.