Do you hands and feet get cold easily? Have you lost any eyebrow hairs? Is your skin dry? These could be symptoms of low thyroid. See the stopthethyroidmadness.com site just in case maybe.
I think one has to do ongoing parasite cleansing, weely if not daily. Yes, there is no way to know if they are all dead, & they probably are not. No matter how much Colloidal Silver we drink, do we know it "hit" every last egg? Probably not. Not to mention that we can pick new ones up just from breathing in air outside, not to mention pets & other people - who generally are clueless they even have parasites & get into denial too often if that suggestion is made to them.
It sounds like that segmented thingie was an ascaris, especially if it was a beige color. You can see pictures of them, one monster in a jar, in the photo gallery here at CZ. Different paracides kill different bugs. I wonder if you are using a zapper, or rife? Rhetorical Q., something to maybe think about.