As you know, you have posted on the wrong site. Questions about HIV belong on the HIV prevention site. I will do my best to answer your questions with this reply but, if you have additional questions or follow-up they must be on the HIV Prevention site. Sorry bu those are the rules.
I do think that you are at virtually no risk from the receipt of acupuncture. As you point out, the needles are single use. Furthermore, acupuncture needles are not hollow and hollow needles are the ones that most efficiently transfer blood from person to person, not solid ones. In answer to your specific questions:
1. See above- no.
2. Again, no.
3 and 4. Sore throat alone would not be typical of the ARS and 6 days is too early for the ARS to start. It typically begins at around 3 weeks.
Hope this helps. EWH
Have just realised I have posted this in the wrong forum. Does anybody know how to put it in the right one?
Thanks