I have the same problem. I've been taking dewormer for almost 5 months now. After 3 months, the crawling started in the rectum and sometimes they crawl to the vagina. I also feel something big moving inside sometimes. I'm waiting for humaworm extra strength customized for tapeworms and pinworms. Hoping it kills them off. If not, I'll try the next thing and/or increase the amounts i've been taking. I'm not a quitter. And I go to work everyday because I have to. It hasn't been easy but I know it's a gradual process. THey die off gradually. I feel tired and sometimes stomach upset, headache, bloating but nothing more serious. One time I was rocking in my glider when I felt something come up very fast into my throat almost into my mouth and boy did it make me jump up and swallow. I believe it's a tapeworm because I passed many segments early on but not the head. keep in mind that before I did my first ever liver flush in august 2009, I never had or felt a worm crawling. So this is a bit of a shock to me. I do see worms in the toilet each day.
Are you experiencing more than this? Are you feeling sick? Let me know what you're going through.