I'm sorry to hear that your frankly irrational anxieties about a no-risk sexual exposure are continuing despite the extended conversation with Dr. Hook a few weeks ago, including his unequivocal reassurance. You were not at risk and didn't need testing, at least not from a medical standpoint -- although of course we understand that testing is often a good idea for reassurance. Your negative result at 5 weeks was almost conclusive proof you didn't catch HIV. But since it isn't quite 100%, feel free to have another test. Any antibody test done more than 8 weeks (56 days) after the last possible exposure is definitely conclusive; see the thread linked below for more discussion about time to conclusive results with various HIV tests, including the reasons that official recommendations still stress 3 month testing even though results are generally conclusive earlier than that.
http://www.medhelp.org/posts/show/1704700
As for your continuing anxieties, I have nothing more to offer. All we can do is provide the facts, figures, and our professional judgment about HIV transmission risks, test results, etc. The rest is up to you. As discussed with Dr. Hook, it seems that this is a case of transferrence -- i.e. guilt and shame over a sexual choice you regret being interpreted as HIV fear. My guess is that you're going to still feel guilty and ashamed regardless of your future negative HIV test results. If so, all I can do is suggest the obvious: professional counseling. However, this forum is not a substitute for that, so there won't be a prolonged discussion as on your other thread. I won't have any further comments or advice.
Please note the MedHelp rule that permits a maximum of 2 questions every 6 months on each of the professionally moderated forums (see Terms and Conditions). The purpose is to prevent domination of forums by repetative, anxiety-driven questions (much like yours!).
Regards-- HHH, MD