I sent samples to Dr. Amin's lab in Arizona. They didn't even open the sample yet charged me for lab work that came back as 'fecal material'. I sent him 5 distinct parasites. I have pictures of what I sent him before I sent it. Then I requested the sample back. All of the parasites
were totally intact. None had been sliced to go under a microscope.
My Naturopath had the same experience with him for years ie all samples came back as negative and he finally gave up.
I did use the Parasitology Center (Dr. Amin) herbal mixture with some success but it is very pricey.
Google Dr. Andreas Kalcker and use his protocol. You can buy the mebendazole thru Ebay from overseas. You can buy the Miracle-Mineral-Supplement
thru the internet.
You can read the success stories here on CZ, send us pictures of stuff you fish out of your stools for possible ID but you really have to become your own healer. Read everything you can. Buy some used textbooks, maybe even a microscope.
Other people have recommended trying to find a friendly vet and using their lab services or finding a doctor trained in the third world.
Parawellness labs seems to be legit. I have personally not used them. They are the only lab that I have seen that do urine as well as stool samples.
See if you can figure out where you might have picked up the parasites. Did you travel? Do you live in a hot climate? Do you live with animals? What are your symptoms?