My dad (85 years old and on HD for about 2+ years) has started experiencing very loose stool on Monday mornings with frequent trips to the bathroom. We have reviewed his diet; nothing has changed and he is very strict with what he eats--he does exactly what his doctor and support team tell him to do. We are wondering if this issue could be related to fluid buildup after the 2-day break from dialysis treatments (he is a Mon-Wed-Fri patient).Has anyone heard of/experienced this issue?Thanks!!