Thanks for the input guys, appreciate it. Makes me feel somewhat better.
As anxious says, you can't get HIV from oral even if you had bleeding gums from flossing. It is inactivated in the mouth by your saliva. Unless you have unprotected vaginal or anal sex or share IV drug needles, HIV is not a factor. This means anything you are attributing to ARS is not so, as you had no risk.
You had no risk of HIV because you can't get HIV from touching HIV or oral activities. You are so safe that you don't even need to test. There is nothing to be anxious about.
People like you who don't have HIV can get any of those symptoms at any time so that has nothing to do with diagnosing HIV.
HIV is instantly inactivated in air and saliva which means it is effectively dead as soon as it leaves someone's body so it can't infect from touching or oral. It doesn't matter if you and they were actively bleeding or had cuts at the time either because the HIV is effectively dead.
Only adult risks are unprotected penetrating vaginal or anal sex or sharing needles that you inject with but you didn't do that so you had no risk. This sentence is all you need to know to protect yourself against HIV.
Even with blood, lactation cuts, rashes, burns etc air or saliva does not allow inactivated virus to infect from touching it or oral activities. The above HIV science is 40 years old and very well established so nothing you can add will make your situation a risk.