muscle cramps can occur from low levels of minerals in the blood such as potassium but i have not heard of it being caused by an excess of vitamins. there really is no reason to take large amounts of vitamins so it makes sense to stop or just take the recommended daily allowance. if the cramping continues see your doctor to determine cause. this article provides various reasons for muscle cramping. usually muscle cramps do not occur due to excess of vitamins. although muscle weakness is one of the symptoms of hypervitaminosis e. however anything excess in the body causes imbalance and can lead to untoward effects.
can vitamin overload cause muscle cramping? ( ribs legs feet hands)