I was diagnosed with ALS in 2008 December. They referred me to an ALS specialist who wanted to more tests. EMG's. I refused because the first one caused me so many issues. I tried so many supplements including immunocal. It held me in there for awhile. I initially thought my first blood work included a Lyme test, but it did not. They told me all my blood work came back negative. So I assumed everything I was doing was with the initial ALS diagnosis. Another friend said the diseases are so similar, so I did another Lyme test that came back inconclusive, this one was with I-Genex, a more reliable testing. I told my doctor that I thought I got this from my dad who had Parkinsons, and if he got it he got it from India, so typing the strain would be rare. He agreed and perscribed me antibiotics and it has worked very well. BTW, there is 90% correlation to people with nervous system disease and Lyme. I would fight to get the antibiotics, even if you test negative alot of you have nothing to lose and everything to gain.