anal itching is for sure parasites .stool testing is mostly negative trust me.test with parawellness he is good and do as many tests for parasites as you can to try to get to the bottom of what you are dealing with.they are quick for hashimoto disease but anal itching and other strange symtoms that don't apply to hashimoto are still hashimoto. THERE ANSWER IS TRUST US WE HAVE MD CERTIFICATE YOU DONT. be very careful to trust drs your gut is right that anal itching is not neurolical.they get very very weird when parasites are mentioned and can get quite annoyed with you if the subject comes up.