yeah.. I don't know if anyone else has had this experience...but those dreadful flukes, if travelled up into the GI tract... can go straight up into the head.. or.. in my case sit behind the tonsils while you sleep! Its revolting!.. 3 courses of Prazi got rid of the ones upsetting me up high in the body... and lots more in the toilet. Valerian root definitely helps to stop the stirring and movement at night.