>I then drove 3 hours to a conference
>and after I sat for about an hour I got up and had aching pain in my left leg
>which worsened whenever I bent my ankle. It hurt all day, but was fine the
>day when I got up
Sitting shortens your calf, because it's at right angles to the upper leg.
Thus, when you get up, you're tearing it and the tendon because suddenly they
must stretch. Also, an injured muscle crunches up while at rest.
An amateur's opinion...
We spend our lives running from things
Which are not chasing us