Hi,
I have seronegative RA. My RA testing (except for ANA) has always been negative. My ANA test first tested positive at beginning of pandemic. A year later, it was a bit worse. I was referred to aRA who did ultrasound and found erosions. The more I read about this, the more I realize that depending on RA blood tests is totally not the gold standard and can cause delays in diagnosis. My first really bad symptoms started 10 years before ANA showed positive. Up until then, everything was negative for RA. My grandfather had RA so there was a family component. I wished I had pushed harder sooner and not waited until the pain was unbearable.