The exposures you describe were low risk.  Most people, including most men who have sex with other men, do not have untreated HIV.  In addition, performing oral sex on an untreated HIV infected man is a low risk event- the estimated risk of acquiring HIV from performing oral sex on a man with untreated HIV is, on average, less than 1 in 10,000, i.e. as in having sex with an HIV infected partner daily for more than 27 years.  Finally, as you know, the ARS does not occur more than 30 days following an encounter which leads to HIV infection.  Finally, it would be rather unusual for the ARS to only last 2-3 days.  I am confident that you did not acquire HIV from the encounters you describe and do not feel that testing at this time is important for you.  Some of our clients however do appreciate the reassurance that a negative test provides.  If you wish to prove that your recent symptoms were not the ARS, you can test now and a negative test will prove that your symptoms were not due to HIV.  OTOH, if you wish to conclusively prove that you did not acquire HIV from the exposures you describe, then you will need to wait for testing until at least 6 weeks following your last encounter.

I am confident that you did not get HIV from the encounters you describe and as mentioned above, do not feel that testing is needed at all because of them.  I hope that the information I have provided is helpful to you.  EWH