Leg cramps / Charley horse cramps ‼️‼️

Oh my lord I maybe recall getting these in first pregnancy but they are gaw awful this time around. I am screaming out in pain at night when they happen. I’m trying to eat occasional bananas and drink enough water. I can’t eat bananas every day due to my blood sugar issues. What else can I do? Some people saying magnesium supplements but my prenatal has it already and I don’t want to go over daily recommendations.