Hi!
The other consideration is that you may have a fairly symptom-less end to your menstrual cycle. I had BC at 67 and was possibly the only person somewhat cheered by the news that I might have menopause-like symptoms when taking an AI, simply because I didn’t have any menopause symptoms. My periods did get slightly lighter, then stopped. No sweats, flashes, mood swings etc. I did have one very heavy bleed after stopping for a few months - cheerfully referred to by GP at the time as my ‘last hurrah’! But it’s also worth getting it checked, as I did after the heavy bleed just to ensure all was in order. One thing at a time! Best wishes.