I am a 46 year old WM who had unprotected sex with 48 year old WF ex girlfriend 3 times in one weekend.  I tested this Monday (64 days) post exposure with a 4th generation hiv test.  The results were negative.  2 days after testing I began to experience flu like symptoms.  Fatigue body aches stuffy or runny nose. Some sneezing and cough And sore lymph node under jaw.   Should I retest. And if so when?  

Also. She has not been tested recently but has tested negative in the past.  She feels she does not need to be tested. 

Welcome to the Forum. Thanks for your question and your confidence in our service.  Your symptoms are not due to HIV.  I say this with confidence.  Your flu-like symptoms have begun far too late to be due to recently acquired HIV.  The ARS has its onset between 10 and 30 days following an encounter and does not occur beyond 30 days.  Had you acquired HIV, your test would have been positive.  Tests for HIV are absolutely conclusive any time more than 6 weeks following exposure and when symptoms are due to HIV, tests are always positive.---

Thank you sir.  I only wondered because the symptoms occurred after the test.  And that the timing of my testing could have been an issue.  Possibly right before seroconversion. As in the test may have been invalid due to my testing before the illness.  Your thoughts? 

As I said, if you had acquired HIV, your test would have been positive long before the onset of your symptoms.  As I said, results of HIV tests are completely conclusive and time more than 6 weeks (42 days) following an exposure.  EWH---

Thank you.   I am not sure I actually had an exposure.  Just that she had not been tested.  And was not faithful.  I understand there is probably an emotional component to this situation.  If I do choose to retest would next week I could consider that completely conclusive with no risk to a future partner? 

It sounds like there is a fair of amount of guilt involved here.  If you choose to test again, the results will confirm the conclusively negative test you already have.---