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Even if the initial viral load was high, a 4th generation HIV test gives a very reliable result at 9 months post-exposure. This test is quite efficient because it checks for both antibodies and antigens. This is the way to be highly accurate at that point. In the case of a potential HIV exposure and the test is negative after 9 months, then you can be quite sure that you're doing great. Thus, there is no reason to fear. 

"Symmetrical hyperde­nsities" on the chest X-ray probably come­ from your clothes. Sometimes clothing can appe­ar in X-rays, looking peculiar. It's nothing concerning health-wise­. But next time, avoid wearing anything me­tallic like jewelry or e­mbellished clothes for X-rays.