I experience pain in my legs which occurs on a long drive. Its not seeming to come from my back or down my leg nerve as in sciatica but more in what feels like the muscles or veins or ?? I m not sure. Its quite widespread around the legs and happens in both legs. If I stop and walk a little bit this eases it. Or if I manage to move my leg (more easily done with the one not operating the pedals), particularly if I bend the knee up towards my body for a while, it can stop for a while. It can at times get quite extreme and concerning. I am usually ok for an hour but if I do a long drive it comes on.