Believe it or not what you have described is known as "Restless legs syndrome". It can be a sign of any number of nutritional deficiencies - in particular Folic acid, Vitamin E, iron and magnesium have all been linked with rls.

I have posted a link to 2 articles below (from Townsend letters) giving further details - the first is on "restless legs syndrome" and the second on "nutritional factors and sleep".

Hope this helps.

http://www.findarticles.com/cf_0/m0ISW/241-242/107201247/p1/article.jhtml
http://www.findarticles.com/cf_dls/m0ISW/249/114820705/p1/article.jhtml

Mag, cal, salt, potassium, etc. etc., could be any one of them, but salts are the usual culprits. :) Parsley juice helps the kidneys manage salts better.

You can take the CB any time you want except on the day of the flush or day after, give your liver a break then. It is not a stone softening agent tho, neither is Coptis, so be sure to choose one or two stone softening agents to use prior to your next flush. Coptis promotes bile flow, so we like it prior to a flush, but it's not mandatory. :)