false negatives because of co-infection?
More than 7 years after possible exposure I had 4 negative Biosure tests and a laboratory antibody test through my GP conducted over 5 month period. I also had a negative VDRL and negative TPHA syphilis test. Could a co-infection syphilis-HIV cause all the HIV tests and the Syphilis tests to be false negatives (cancelling each other out)? I have lots of symptoms including white tongue for 2 years, pain in sides, also had weak legs and Hives rashes which have now gone away. Been panicking for more than 2 years about the test results.