I went through some of the same things after my first Liver Flush and again with my second.
Someone on the bowelcleanse forum at yahoo suggested it might be adrenal exhaustion and suggested herbal teas such as licorice, ginseng, ginger etc.
I now have a big tea assortment and cycle through them but I would recommend the Stash Sampler as it has 9 different kinds and actually tastes good. It may not be as potent as some (I have no idea really) but is sure a good way to start offif you are not big into tea. (tea blecchhh!! I say)
Anyway it seemed to work or me somewhat as I am still passing stones a week after my second flush and other assorted garbage and have not been nearly as exhausted as after the first one.
I did things backward and did a Liver Flush then parasite cleanse was starting again I would do the parasite cleanse first then the Liver Flush on day 6 or seven and continue on as there can be parasites in your liver and the flush will get rid of the corpses.
As an aside the Epsom Salts will help flush out parasites and tastes much less ugly if mixed in warm water. Make two glasses, refrigerate one and compare the taste.