Unfortunetley I learned that the trick is to say you just came back from a dirty foreign country. Then they take you WAAAAY more seriously when it comes to parasites. Yes it's lieing, but its one way of going about it. The thing is, doctors have extremley powerful drugs for dealing with specific parasites. So if you have a SERIOUS tape worm infection, they have drugs that will just wipe them right out. Note the word SPECIFIC, unlike Humaworm which is generally very effective.