i am struggling with similar symptoms as you. i have seen many doctors and done so many tests. the only thing that comes back is vitamin D and B12 and iron deficiency. parasites are very hard to detect. I have had many many stool test and they always come back normal. I feel like something has suck the life out of me.
the doctor you mentioned that specializes in parasites, is he a infection disease doctor?
He probably will run several blood test and stool test.
I have tried herbal parasite cleanse, didn't do much.
now I am trying western med. Flagyl I am staring to feel the die off.