I think that it can be many different things going on with someone that thinks are infected by a parasite it can be blood disease issues, immunity disease.
I just wanted to share one thing that worked for me. it was one of the only things that worked. I was part of a Club 24 Hour Fitness I would get in the steam room.Then I would swim in the swimming pool and cool down then I would get in the hot tub and repeat the process, All over again. it helped me go to sleep and stay on task in my job. I did this over and over again it worked for 6 mounths months but I wasn't doing any of this other stuff with diet and I had not been thinking about parasites.
Also just going gluten-free has work for me in the past. it's hard to stay on that but some people go without meat, Dairy, gluten, sugar, anyway just wanted to help with what has worked in the past here.