Hello Doctors!!

I had unprotected sex on 28 Nov 2024. I tested for HIV using 4th-generation tests at 23 days ,46 days, 8 months, 8 months 20 days, and 1 year 10 days - post-exposure, all negative. I have had no health issues or symptoms in the past year.However, after reading about rare seronegative HIV cases, including recent reports, and a forum thread here where a NAT test was advised despite negative 4th-gen tests, I’m feeling anxious. I have never had an HIV NAT/PCR test.

My questions:

1. Is it possible for a healthy person to remain 4th-gen negative long after the window period but test positive only on a NAT?

2. Should I get a NAT test for HIV-1 and HIV-2 ?