Yes its true, MD's don't even consider all the parasitic microbes that live in all of us that may be unbalanced and hurting us. They probably have them too!
I took my worm to Doc and he said maybe it was epithelium from the lining of my intestine, however all my symptoms coincide with a parasite infection. Sent it to Great Smokies and still got a negative answer, BUT I took anti parasite herbs and meds and my health has improved. My family believes I definitely had a parasite. Still have to clean up my system...its never over.