Architectural distortion and focal asymmetry, driving myself crazy

I’m 58, had my annual mammogram right after Christmas. Fairly tame history, had a PASH in my right breast about 15 years ago (biopsied and removed, benign) and just one abnormal mammogram since (diagnostic mammo and US showed nothing, repeated at 6 months and clear). Fast forward to now, mammo showed new architectural distortion and focal asymmetry in my right breast (seems to be the trouble maker!). Scheduled for my follow-up mammo and ultrasound in 10 days so of course I can’t think about anything else. I know it’s a slim chance it’s cancer but the size of my AD seems to be significant (Google tells me it’s about 10x the median size) so that has me concerned. I know I can’t get definitive answers here but from the other threads I’ve read I’d feel better hearing from anyone with a similar experience vs more googling. Thanks!