I was diagnosed in March of 2023 with moderate, no symptoms, routine GP visit sent me to a cardiologist. Eight months later, it was another echo and they diagnosed it as severe. I waited another year (insurance reasons) and based my decision on the tesst results; pressure in that chamber was ever increasing. Advice from everyone I brought it to was don't wait until you are symptomatic; and end of July had a mini-AVR...still wasn't symptomatic...so woke up feeling worse than when I went in.
Best advice I've seen in here was from Pellicil, monitor the test results...no need in doing any further damage that "might" not be able to be undone.
PS I'd had my bicuspid murmer since childhood...the stenosis...I don't know when that actually began. Best wishes to you.