You were at little or no risk of HIV; an exposure like yours has never been scientifically documented to result in HIV infection. That doesn't prove it can't occur, but obviously it is exceedingly rare if it does. Equally important, your symptoms in fact do not sound like ARS. Perhaps the biggest confusion from typical online advice about ARS symptoms is the characterization as being "flu like". Those who first described ARS symptoms (40 years ago) meant "flu like" to refer only to malaise (feeling bad in general), muscle aches, and headache. Influenza also causes cough and nasal congestion, but ARS does NOT cause these. Clearly you caught flu, covid, or a bad cold -- but not ARS.

As for whether you "should worry about and whether...[to] get tested", my advice is that it isn't necessary from a medical or risk perspective. On the other hand, you were worried enough to come here for advice. We always hope that persons in that situation would be completely reassured by our judgment, but that's not realistic for many worried persons:  once the idea of HIV is planted in the mind, negative test results often are wise strictly for reassurance. If you feel that way, by all means have an HIV blood test. And you can do that right now:  although it can take longer for some newly infected persons to test positive, a negative HIV test now will prove HIV isn't he cause of your symptoms, i.e. you don't have ARS. A standard AgAb (4th generation) blood test would be fine. It isn't possible to have ARS symptoms and test positive, regardless of the time since exposure. (And perhaps you'd also like to know that in the 21 years of this and our preceding forum, with thousands of such questions, not one person has ever tested positive for HIV. You won't be the first!)

Let me know if anything isn't clear. Feel free to let me know the result if you decide to have one. For now, I hope these comments calm your fears! 

HHH, MD