B*gger!

There I was, lying in bed last night where I was assailed by an attack of cramp in my right calf. As the muscle went into spasm I felt a tearing "pop" of muscle fibres being torn asunder.

I suppose yesterday's run (and a lingering cold) must have had something to do with it but I can hand on heart say that yesterday's run was easy and there wasn't a hint of any calf problem during or after.

Darned annoying!