They are intestinal parasites insiteu, in other words, they don't go to your brain. They will cause you discomfort and weight loss but, in the modern medical environment, they won't kill you and they won't, repeat, won't go to your brain. However, they will come out of your butt. That's when you go to the doctor and get something to kill them. Liberal science urinalists (spelled wrong for effect) only think that because they most always think with the place that the worms come out of, hence the confusion with the brain.
I'm a doctor, and I don't play on on TV.
Wow, for a while there, I was scared that you might be an English teacher.
I sure hope your practice doesn’t include much treatment of parasitic diseases, because you are wrong. I suspect you weren’t paying much attention to the lectures on parasitology that you may or may not have had in medical school. Does the term visceral larval migrans ring a bell? Did anyone tell you about the peculiarities of Taenia solium and how its immature stages can invade the tissues of humans (giving rise in some unfortunate cases to “brain worm”? How about hydatid disease? And a whole bunch of other worms. Better borrow an introductory text book and bone up on the subject before you kill someone.