Honestly, if you have worms in your brain/head, you should go to a specialist/doctor, as that can be a serious condition with dire consequences. If you are afraid of what they might find, waiting is not doing you any good.
If a general practitioner tells you there's nothing wrong, you could see a Naturopath (natural doctor). You can go to "WWW dot naturopathic dot ORG" and use the search to find one in your area.
You could go on a round of Humaworm, but if you think they are in your organs, I would strongly suggest seeing some type of doctor ASAP.