Your hospital undoubtedly has an infectious disease protocol. Talk to them. Follow whatever they suggest.
Well that's what happened was I injected myself with her used needle. It was a tb needle. And I know she is weird and assumes the guy she has been with is clean. So she doesn't feel like any testing was necessary.
Everyone thinks they have ARS here, but no one does, so the best policy is don't let your imagination think of this. If you didn't inject when you pricked that might make zero chance of transmission, because HIV is instantly inactivated in air so I am guessing the end of the needle blood would be inactivated.
Can you get her to test 28 days after her unprotected exposure with a 4th generation test? Or maybe her encounter guy can test for you?
No one here pays attention to symptoms for the reasons you outlined that they can be from anything, so prove nothing.