I was having horrific leg cramps until my OB/GP sent me along to the health food shop to get some tissue salts. These are like vitamin tablets and perfectly safe to have when pg (and not overly expensive)... anyway for the cramps I am having some calcium and magnesium based ones and also another lot for a bit of anxiety I was suffering. If you go to the health food shop they will be able to tell you which ones they are, silly pg brain can't remember.

My Grandma's remedy, have at least one banana a day, no more cramps. I would do this except I still have m/s and can't even smell banana's.