Andreas Moritz
Colon cleasning can soften up and release waste, which attracts bacteria. The bacteria try to break down some of it, which causes gas and toxins. The trapped gas can make you uncomfortable while standing or sitting because it tends to move up (like in helium balloon)into the stomach and diaphragm. Lying down helps the diffuse that pressure. THe toxins are absorbed through the lymph ducts and cysterna chyli vessels (see the figure in The Amazing Liver & Gallbladder FLush), which can make them tender to the touch. A colonic or two can hazen the cleansing process and avoid some of the side-effects that arise from other forms of intestinal cleansing.
Andreas