I apologize for the late reply, I never received your message until I stumbled upon it today on the curezone website, by pure "accident."
If your fingers feel stiff in the morning after a liver cleanse, it most likely from not having cleansed the colon according to the directions given in my book, The Amazing Liver Cleanse. If even just a few stones or "sludge" gets trapped in the colon (which happens more often than not) some of the toxic material enters the blood and/or kidneys. This, in turn, may lead to swelling of the joints or deposits therein. If you have had any history of kidney trouble or have bladder/prostrate problems you may be advised to do a kidney cleanse before attempting liver flush. The revised recipe is described in the new edition of the book; www.1stbooks.com.
I hope this will be helpful to you,
Andreas Moritz