Cramps may be due to several causes Please continue taking evion . Please check your RED CELL Magnesium levels and not serum Magnesium If it is not possible just forget Take a warm water bath in the evening with epsom salt which is available with your pharmacist ask your pharmacist for a Magnesium chloride topical spray or solution apply at bed time Also take a tablet of Neurobion forte 1 tab twice daily for a month cut down coffee and tea which dehydrate For constipation Please change your diet and lifestyle Stop all dairy products Cut down animal proteins Eat plant based diet Don’t skip meals . Keep moving for your bowels to move Exercise daily Increase fluid intake according to your weight and level of activity. Increase fiber intake-Oats, brown rice, apples, pears, Prunes, figs Berries , Apricots , Green leafy veggies. Chew well to poo well Squat better to Poo better. These general measures will work. If they don’t work go to a Gastroenterologist doctor for further evaluation and testing.