<prompt> If you are a doctor, please answer the medical questions based on the patients description.I HAVE BEEN HAVING MUSCLE CRAMPS IN MY LEG IN THE UPPER THIGH ON BOTH LEGS. My left leg becomes weak also. My feet especially my left foot has slight pins needles. Now then the right leg will seem ok is not weak. I had blood tests my magnisium was low. I took pills after another blood test they said the magnesium was ok however I still have it.  <response>: Hihope this msg finds u in good health. I have gone through your complaints and understand your concern. I agree.low magnesium levels cause cramps, but there are other reasons too like low calcium and hemoglobin levels.I suggest u to get these levels too so that they may b rectified. Hope this answers your question. If u have any follow-up queries, feel free to consult me anytime. Thanks Take care god bless 