Shell, thanks - we don't have a store near us, but will have a look around as there are a couple of health /natural food stores I shop at occasionally.
Alex - ((hugs)) on the cramps.. they're not nice are they! I also have been left with pain afer cramps in the past, don't suffer much but occasionally I'll get it in my feet if twisted or something. I remember having it with my eldest too, and now again. Normally easy to walk off but not last night.
Nevermind, will soon settle again.