First, please state what your risk was that you tested for.
I think during your annual physical exam you should talk to your doctor about anxiety. It's irrational thought to fear HIV from a physical exam. The only ways that people get HIV is to have unprotected vaginal or anal intercourse (no condom with penetration) or to share IV drug needles to INJECT drugs. Popping of a pimple by a barber, blood draw at the doctors, etc. will not result in HIV transmission. Your anxiety level needs to assessed by a mental health professional as it sounds to be impacting you.