You didn't mention what type of liver cleanses she and the other persons mentioned have been following. It is essential to cleanse the colon before and after the liver cleanse through colonics or colemas. Otherwise, any existing intestinal stricture or major irritation there can causes futher conractions in the colon. Or, any trapped stones in the colon can lead to such a situation and cause constipation. The pre-cleanse period used to softening of stones is also important. Make sure to follow all the directions given in the book The Amazing Liver Cleanse, ener-chi.com) to avoid any unnecessary complications. However, not having a bowel movement for up to two full days after a liver/colon cleanse is normal, since only 1/3 of the stool is made up from the fibre of food, the rest is dead bacteria and structural parts of the intestines.
In some cases, though, it may happen that after a liver cleanse, more stones end up moving into those bile ducts from the rear parts of the liver than were there before. This can affect the digestive process. Hence it is important to keep cleaning the liver until all stones are removed and the bile flow becomes and remains optimal. Diet and lifestyle (bed and mealtimes) are also important factors to consider (see The Key to Health and Rejuvenation).