Your problem is you have disregarded all of the important part of the advice and effectively stated it is wrong - even though you have no medical training you are convinced microtears are possible because you are so worried about your chest that you feel the condom has something to do with it. Example - "how are you so sure that microtears in condoms are a myth?"
Until you accept the science, you will continue to worry because you were convinced you had hiv before you came here.
I'm not addressing your symptoms because they have nothing to do with HIV. To test for HIV, you have to ask specifically for an HIV test.
I'm so sure because no one gets HIV when using an intact condom that does not burst open. There are 40+ years of documented cases. Fear does not equal risk.
Mythical "micro tears" are not a risk for HIV. If the head of your penis was covered during intercourse, you have no HIV concern. The wrong lube CAN cause a condom to burst, but since it clearly did not in your case, you were protected from exposure to HIV.
Obviously, your wheezing and chest pain are not related to HIV, but if it gets worse, you should see a doctor since it could be an allergic reaction, asthma, or COVID.