<s>[INST] My 79 year old mother suddenly could not move her legs. She was unable to walk with severe pain at the top of her legs. It lasted about 30 minutes before she could move and pain continued throughout the night. Still tender today but not near as painful.  Any ideas what may have caused her seizing up like that? [/INST] Hello against Muscle cramps are very common in females my advice for YouTube plenty of water, fluid intake will dilute toxins. Physiotherapy with ultrasound and Tens will help you, Yes you can do exercises like swimming, riding stationary bicycle, but do not overexert yourself. Take potassium rich diet. Hot and cold fomentation to leg. You need to continue you medication for a couple of month to see effects. Add tab methylcobal 1500 once day. Nerve compression can be seen on MRI which may lead to leg pain. Hope this answers your query. If you have additional questions or follow-up queries then please do not hesitate in writing to us. I will be happy to answer your queries. Wishing you good health. Take carhop I have answered your query. I will be available to answer followup queries. If you are satisfied with the answer, please give your review at the end of the discussion. </s>