I wasn't tested for parasites, but I had one of the indicators--a crawling feeling towards the end of my digestive track. For weeks I thought that the crawling feeling was being caused by the candida growing inside of me. My candida was very severe--it had jumped out of my body and had started growing down my legs. I think that is why I was confused about what was causing the crawling feeling. I know now it was from parasites. I hope this helps.