Hair test looks good, but still very sick, need help

Just yesturday I recieved the results of my hair test analysis back.

According to Andy Cutlers counting rules, my test looks perfectly normal. I have been concerned primarily about the possibility of mercury toxicity (possible occupational exposure), but mercury only showed up extremely low in the hair test, and mineral transport was not deranged.

I have also had a urine test (unprovoked) and a blood test for mercury both of which showed extremely low levels of mercury, sometimes below the detectable limit.

I have heard many say that there are no reliable tests for mercury toxicity, and that no test can rule out the possibilty of mercury in body compatments such as the liver or brain.

Could mercury toxicity still be a possibilty for me?

Has anyone else tested negative for mercury on tests but benefited from chelation?

I would love to hear about anybodys expiriences or advice regarding the reliability of some of these tests.