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.
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