For an igg test for hsv2, does an index of .90 mean i have it but the virus is dormant or inactive? my doc said .90 means i have it but since the value is so low, im trying to understand if its inactive (i have no symptoms) or im negative?

An index value of 0.90 is technically borderline; the test is not officially positive except at index value 1.1 or higher. Even then, a positive result is not reliable except for index above 3.5. At 0.9, it is very unlikely you actually have any HSV2 IgG antibody and probably are not infected. If recently infected, your test might be becoming positive. Retest in a few weeks to be sure. Good luck.