Well, your risk of exposure, as you described it, is very low risk since you were using a condom (even if you are afraid some vaginal fluids entered the condom, rest assured that the exposure is STILL low-risk). Furthermore, your risk of contacting HIV as a male is lower than that of a female, and even lower if you are circumcised.
Your symptoms have probably caused you much worry...but they are probably due to a common flu/bug. All too often people stress out, which in turn, weakens the immune system further.
For others that are reading this...a 2-week Rapid HIV test is completely useless.
However, the fact that you have had successive negative rapid tests at 6 and 8 weeks is HIGHLY reassuring, as at least 85% and 95% of HIV infected persons would have produced detectable antibodies at those time points, respectively (research suggests that the average HIV infected person will produce detectable antibodies somewhere in the 17-30 day range).
Technically, according to the CDC, you are still within your (13 week) HIV window period; however recent advancements in HIV testing have increased sensitivity and reliability such that a 6 week (and especially an 8 week) negative result are extremely accurate.
Do test again at 13 weeks, if for anything else but peace of mind...but for practical purposes you can start smiling and stop worrying, because your (negative) rapid HIV tests at the stated time points are unequivocally sound.
