If you want to know if you have parasites or not, go to your nearest pharmacy and purchase Pin-X or Reese's pinworm medication. This has an ingredient in it called Pyrantel Pamoate. Pyrantel paralyzes the worms and forces them to detach from your intestinal lining so that you can poop them out. If you have to do an enema about 2 hours after ingesting the recommended dosage of this medicine so that you can go poo. Dig through the stuff and see if there are any worms in there. If you do find them make ABSOLUTELY certain to put them in a ziplock bag in the freezer until you can get them to your doctor. DO NOT put them back in your poo because worms shrink when they die and you will be lucky to find them again or even to find a lab tech who can find them. I DO have worms and my first stool sample came back NORMAL!! You can not trust these tests because they only test a small portion of the stuff which may not have anything in it. Then they will just think that you are crazy especially since you are on an anti depressant. I speak from experience. Good Luck!!