A duo test 4 weeks after your last exposure (if you had an exposure) is accurate.You can confirm the result for the peace of your mind 3 months after your last exposure. If your last exposure is older than 3 months then you can test NOW and be aware of your status.
symptoms cannot diagnose a HIV infection. Get tested if you think you have had an exposure. HIV is transmitted through unprotected vaginal/anal intercourse, infected mother to child or sharing of IV needles.