This morning arrived with more muscle spasms in the lower legs and feet. Since I haven't done any of the physical therapy exercises since Saturday, this now appears to me to be rather a side effect of chemotherapy. In any case, after consulting with the oncologist, the physical therapist declared my therapy on hold for now (thus transforming the situation de facto into the situation de jure). The problem will now be to determine exactly what to do in order to avoid suffering too much regression in this area.
The muscle spasms are now being treated with a muscle relaxant (orphenadrine citrate). I will also be getting an additional 500 mg of calcium daily, since a blood test revealed a deficit on that.