I had my blood tested 17 yrs ago for vdrl and came positive at first but negative when repeated, recent test also came weak positive, what does it mean?

See a specialist: In venereal diseases! the vdrl est for detection of syphilis is basically a non treponemal test that is known to have false positives reactions. Quantitative vdrl test is much better thus essential as well and HIV test. Sometimes a spinal tap (CSF) vdrl is needed too. As i said, see a good specialist in the field of venereal diseases.