Leg cramps are a classic sign of magnesium deficiency, especially if you are stressed. You should check out the Magnesium Sticks at https://www.amway.mn/buh-eruul-mendijn-buteegdehuun/c/bad-amway which are powder sachets you can take without water. They are super convenient to keep in your bag and they really help relax the muscles and nervous system before bed.