Well, I already told you mine--like I said, though don't expect a zapper to cure cadmium poisoning.
Just remember that if it fails to stop those 'crawly' sensations, and I'm thinking it will fail--don't blame the zapper for not fixing you. It will just prove what I'm saying--that it's not parasites.
And if you take the herbs AND zap, you'll definitely be rid of your intestinal tract 'guests'--but both are necessary to assume you do.
Say, you aren't related to thathippyguy, are you? You sound and act just like him.