It can take up to 6 weeks for the
HIV antibody tests, including Western blot, to become
positive. However, the antibody tests always are positive within 10 days after onset of symptoms -- so the test result is proof your symptoms are not due to HIV.
I'm confused by your HIV antibody test result. Did you have a positive ELISA? Even if you did, the Western blot rules; false positive or indeterminate ELISA results occur from time to time, but the WB result is definitive.