The entire medical system is absotlute crap. I got frustrated, like you so many times. DOctors telling me that I am not toxic since my blood is average and only my urine is above average regarding toxicity.... well if I eliminate a lot of toxins via the urine it must come from somewhere in my body.
I am so frustrated that the mere mention >from caring people surrounding me< about going to see a doctor gets me vent it all out... I guess that I am getting better now that my adrenals are not triggering my metabolism in a way that the slightest stress sets me up to critical level reaction in my body. Still, I will remain critical of the medical institution all my life.
Foucault is a good read on the topic.