I would have test done to rule out mold toxicity and to rule out lyme through a more accurate testing called western blot. If you have even one positive band in the western blot then you are positive for lyme.
Western blot and other antibody tests such as ELISA are nowhere near accurate and do not confirm infection. The biggest problem with antibody testing is what is known as serological cross reactivity. Basically this means antibodies of like structure can cross react on antibody tests yielding false positives. These can be antibodies generated by the body or exogenous antibodies. Therefore positive antibody tests do not mean the person is infected.