Welcome to the Forum. I'll try to help and relieve your stress. I suspect that what I am about to say will primarily serve to confirm what you have already heard. There is no realistic risk for HIV or other STIs from protected sex as long as the condom was worn throughout sex and did not break. Even contact with small amounts of genital secretions during sex would not pose a risk. Thus, had you asked me, I would have told you that you did not need testing at all. Further, you now have a negative PCR test which serves to prove that your symptoms were not due to HIV and that you did not get HIV form the exposure you have described. There is no reason to worry further.
In answer to your specific questions:
1. What was my risk low? or non-existent?
See above. This was a no risk encounter.
2. You have said in previous posts that a combination of PCR and antibody at 4 weeks in 100% but I am worried that the antibody at 4 weeks is too soon.
All I can do is repeat what I have said before. The combination of a negative PCR test and a negative antibody test are definitive at four weeks- You do not have HIV. Believe the results.
3. What do you mean in the following post:
http://www.medhelp.org/posts/HIV---Prevention/False-Negative-Test/show/1459490 when you said that a PCR can be negative but antibody test positive? Why would this be the case? I am worried now that the PCR test being negative may not mean I don't have HIV. Is it possible then that I need another antibody test? I read you saying in that post that if the virus is present the PCR will pick it up since there cannot be a "little of the virus" that is not detected.
When a person has HIV and has been infected for four or more weeks one of the two tests (PCR or antibody) will ALWAYS be positive. The reasons for this are too complex to go into on this forum but this is the case.
4. Can I still get ARS symptoms at this point or beyond? Have you seen that with your patients? ( I am at week 8 now)
No, you are well beyond the time when ARS would occur and you have been proven to not have HIV. Believe it.
I hope these comments are helpful. Take care. EWH