I thought I had pinworms until I did a hardcore garlic pill "cleanse" - 10 a day NatureMades and drove the parasites up into the skin :(.
Realized later that it is likely strongyloides (which I've read are hard to get a positive test on).
I hope you get the answers you need and the treatment that eradicates the issue.
Thank you also for posting about Dr. Amin. I've struggled to get the test I need to prove or disprove a strongyloides disseminated infection. This post may have changed my life.