Magnesium. You can take supplements and also add Epsom salt or magnesium flakes to a bath or foot bath
Try taking a hot bath and put one cup of Epsom salt in it, this will relax your entire body as well as your feet.
Also try a back massager as well as a foot messager
After a bath of lavender Epson salts do the back and feet with the messagers you can use foot messager for hands just put them on jt
Take b complex zinc calcium vital e 500 MG to start
Of you get magnesium get it with d to help absorb the mag