Yes they can. I know from experience. I used to live on antibiotics for sinus infections. Antibiotics gave me candidia which gave me Fibromyalgia
And I had severe depression. Roundworms live in the sinus area. I have pulled I don't know how many out. I have done several HUMAWORM cleanses in the last 5 years faithfully. I have no more fibromyalgia and I don't get sinus infections life is so great. I owe my restored health to HUMAWORM. It works. Be faithful. Drink plenty of water to ease the die off symptoms and the parasite that is in your eyes will be history!!!
For some reason testing does not show up as us having parasites.
You can click on my username and go back 5 years and read my posts. The important ones and look at the ones that I posted pictures of my critters that I once had. Hope this helps. Donna