Not sure of cause. Severe muscle cramping
and contractures in legs, feet, hands
and neck. For past 2 months,and 3 to 4 x nightly. Only one night without the cramping. I drink lots of fluids. Calcium, sodium and potassium levels ok. Have increased potassium foods intake and started on calcium supplements on my own.
I have them during the day when I sit in certain chairs, but not as severe as the ones I get at night. Have them while in swimming and getting out of the pool and while driving.