This question was answered previously that you had no risk from your exposure concern as well as what are actual risks for HIV. You were also told that no, stress will not impact an HIV test result.
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Your situation involves personal contact with an object in air ( hands, maybe saliva if the other person accidentally drooled, blood stain on table etc.). You will be happy to learn that you had no risk, because you can't get hiv from personal contact except unprotected penetrating vaginal or anal, neither of which you did and you didn't share hollow needles to inject with which is the only other way to acquire hiv. Analysis of large numbers of infected people over the 40 years of hiv history has proven that people don't get hiv in the way you are worried is a risk.
HIV is a fragile virus in air or saliva and is effectively instantly dead in either air or saliva so the worst that could happen is dead virus rubbed you, and obviously anything which is dead cannot live again so you are good. Blood and cuts would not be relevant in your situation since the hiv has become effectively dead, so you don't have to worry about them to be sure that you are safe.
There is no reason for a person to test when they are safe. The advice took into consideration that the other person might be positive, so move on and enjoy life instead of thinking about this non-event. hiv prevention is straightforward since there are only 3 ways you can become infected, so next time you wonder if you had a risk, ask yourself this QUESTION. "Did I do any of the 3?" Then after you say "No, I didn't" you will know that it's time to move on back to your happy life.
No one got hiv from what you did during 40 years of hiv history and no one will get it in the next 40 years of your life either. You can do what you did any time and be safe.
You've been worrying about this non-event for 5 months. That is a lot of time wasted in your life. Seek therapy instead of wasting another 5. https://
www.medhelp.org/posts/HIV-Prevention/3rd-generation/show/3061297
Seek therapy for your hiv fixation. hiv isn't lurking everywhere infecting people when they touch things - because it can't infect that way . https://
www.medhelp.org/posts/HIV-Prevention/High-stress-and-hiv-test/show/3063406
The only delay you should be concerned about is the agony you are putting yourself through by not accepting the science. A therapist is the only way for you ot learn how to resolve this unnatural obsession with dead hiv virus, because it definitely is dead when it is encountered in the manner that you are worried about it.