BCBS wont cover my Lyme disease

Blue Cross Blue Sheild Insurance Co.
, No
US

BCBS wont cover my lyme disease because my infectious disease specialist CLINICLY diagnosed me. The test is up to 70% inacurate and I cant get a positive test. The ins. co. knows the facts of this disease and the tests. Now my family is going broke from the cost of treatment from this disease. I think its criminal what they are doing(or not doing in this case)