Not sure if this is the same but a few yrs ago I went thru a stretch of several months were my leg, back and arms would cramp up every day, so painful. With no medical reason given a friend turned me onto a stretch program and high dose of magnesium pills and rubbing magnesium oil into any spot that was hurting. Few months and I have never had another issue. I don’t know why but it worked and since no doctor was helping, who knows. I would check with your PCD before starting anything. Best of luck