Just an info for you - dr.Cahill is too far maybe you can try Parascope in Leeds. I was in Uk last year for finding a cure and received good reviews about this lab. I think it is related with the uni in that city.
i presume you have read a lot - check this link for antiparasitic natural substances. i woul be very carefull with oil of oregano and grapeseed...they are very taugh on the intestines.
please research and test a bit with buckwheat. it has a lot of Fe and some bacteria take advantage of that even though it will help a bit if you have Fe anemia.
I'm not saying you should be the same but flour of any kind seems to be easily eaten by pathogens.