Symptoms of a true HIV infection would never show up this late after exposure. Many people who are exposed to HIV have no symptoms at all. And those who do have symptoms would show them within 2-4 weeks after exposure.
Clearly, given that you had no risk to begin with and the fact that your rashes are showing up far too late after you claim to have been exposed, obviously it's not related. Go see a dermatologist because they are the specialists who deal with skin disorders, instead of wasting so much time worrying about a disease you were not even exposed to in the first place.
The advice can't change from the last time you asked.
"I am generally a person who worries too much about little things" Your anxiety is a mental health issue that is causing 10 months of agony for no reason. See a therapist because no one here can provide the one on one that you need., Your mental illness can get worse if not attended to.