I had unprotected sexual exposure last month, after 4 week I went for a test of hiv duo. Now I received a report in which 0.75 and non reactive mentioned. How much is this report accurate and should I go for western blot test? Right now I am feeling loss of appetite and weight loss. I had also t.b mdr treatment for two years which have completed this year in March. I am confused that what should I do?