The article doesn’t give enough info, but awhile back Discover channel had a show about parasites. In one segment there was a woman with similar sypmtoms, turned out she had a pork tapeworm that had migrated to her brain. She had picked it up somewhere south of the border (Guatamala maybe). It was really interesting, I think the show as called Eaten Alive. We used to show it to our biology students, it was suitably gross but interesting!
Ha, ha—I just posted the same thing seconds within your post.