Anxiety does this to people. You have a conclusive test. The nightmare you are living isn't related to HIV but to your anxiety. Your test shows you don't have HIV. Your anxiety wants to argue facts. Seek help for the anxiety and leave HIV fear behind as you tested negative.
You answered your own question - you had a conclusive test. When a test is conclusive, that means it's time to stop testing, move on, and look for non-HIV causes of your medical issues since you definitively DO NOT have HIV.
The good news is if you had a conclusive hiv test then you're negative, so your only problem is fear of hiv. You don't have any medical training so it is not surprising that you jumped to the conclusion that you are infected with the first disease you can think of, namely hiv, and pretend that no other diseases exist.
That's even assuming you have anything wrong - but I'm guessing from "feels" you have just self diagnosed neuropathy as well - in which case see your doc to find if you even have anything wrong.
You've suffered from your own self diagnosis for 3 months, and since you continue to suffer, see a mental health therapist, because maybe they can help you go back to your happy life.