I am 100% sure that I have intestinal parasites. It was about 5 monthes ago, since I first saw/noticed parasites (worms) in my stool. I went to my doctor and even a children's hospital. I had three stool tests. Two from a lab my doctor referred me to, and the other one from the hospital. All three came out to be negative. I know that these tests are not that accurate. I've taken mebendazole and biltricide and nothing seemed to happen (except the itchiness). I don't know what to do or what's wrong with me, since those anti-helminth medication did not work. Worm #1 I saw was green, flat, smooth, and really long 10in maybe. Worm #2 thin, round, white (maybe light beige)there's a lot of those. If anyone can help me or give me recommendation or anything, it would be great and I would greatly appreciate the help since the doctors i've seen don't seem to know much about parasites.