I have recently started back on manaual exhanges from the cycycler. I have noticed over the past several weeks, I have been having these very painful leg muscle cramps in the backs of my legs. It hurts to the point that it makes it difficult to walk and I have almost fallen several times. They make my legs feel very weak. I brought this up to my PD nurse and she says that it is just that I am moving alot ofluid and to drink more fluid, whcih I have been doing… with no seeming change. Do you or any of the other patients have any suggestions on how to treat or deal with this? I would really appreciate the advice.