40+: Месячные 20 дней задержки и 9 дней кровит — это климакс?

Okay question for older mothers like 40 and up, could also pertain to you younger ones. So this month my period was 20 days late then I started lightly bleeding nine days ago and it never got heavy, mine always has been since having kids like super heavy and it's over within 6 days. It was just pretty normal. But the second day when I woke up in the morning I went to the bathroom as usual and fell over in horrible cramping pain that came on very suddenly I felt nauseous I was laying on the floor for about 10-15 minutes and then it just stopped. Never have I had this happen either. Even haven't had cramps since I had children so over 8 years now. But I have now been bleeding for 9 days and it's really weird cuz I've never had this happen in my entire life. If this is the normal for perimenopause?? I had my blood work done like my hormones and stuff a little over a year ago and everything was normal. And every time I look about it online it says it's not normal to bleed over 7 days but I have no other symptoms