OT: I have fibromyalgia and other autoimmune diseases. I've never been drug tested but know my "blood" tests for allergies, vitamin defiences, etc etc have been skewed due to my fibro and autoimmune issues, according to the Dr. E.g. Blood allergy testing (iGe) normal range was something like 16, mine was 765. (No, not a typo) Therefore they could not determine anything other than my health issues skew the blood tests. I have also tested false positive for RA. I test positive one time, next time I dont. So with that being said, I know from experience by blood tests, things can test false positive as well a urine test for drugs. CL could not have been taking illegal drugs or it would've shown up on the hair follicle test. I'm sure CL probably had to provide a list of her prescribed meds before or after the tests. I know my husband has to before being drug tested for work.