If i have done a TPHA test and serological test for syphilis and both tests were negative, could i still have Chlamydia? or would that test check for all STD's? the doc said i have nothing to worry about and that i have no std what so ever.
TPHA (treponema pallidum hemaglutin antigen) and "serological test for syphilis" are specific tests for syphilis and only syphilis. They do not test for other STDs, including chlamydia. Your physician should realize this. If not, it's time for you to find a more competent physician.