A.F.
I have had a stool test for parasites. I had to INSIST that my doctor order the test. She refused and then relented when I reminded her that she worked for ME and if she wouldn't do it, I would find another practitioner who was willing to spend my money for tests I wanted.
Guess what? I had parasites. I was so sick that I thought I would die, and I ended up on meds for a year that didn't do me any good. I ended up going to a naturopath that put me on a plan that cured me in 2 months.
You may or may not have parasites, but shouldn't your doctor allow you to pay for a test that you request?