I know how you feel. Having the "no wriggling, but they're still coming out feeling."
Though I think it could be a two reasons you don't feel them. First, are you asleep? If you are then maybe you won't feel it. Second, maybe you have so much stuff on that area that you just don't feel it, but they're getting caught.
Though don't worry too much at least they're coming out dead. When I cleanse I never see them in the stuff (though I don't put noxzena I use vasoline and garlic powder). I just typically see them in my stool.