My muscle spasms have improved dramatically since the middle of November. I've been having regular sports massages (at the start once/week and now 1/every other week.) I've been taking magnesium but probably not very much. I've had a couple of restorative yoga classes and have occasionally 'legs up the wall' when my legs get really sore. Also, the yoga teacher has had me standing up and 'rubbing' my feet on things like tennis balls, as she says this can contribute to released the muscles at the back of the legs. And I've been taking various muscle relaxants, no more than one per day now but more at the start.