Ovarian cysts are very common and affect mainly women in their 30s and 40s. Women who are past menopause (ages 50-70) and have ovarian cysts have a higher risk of having ovarian cancer. The only way to diagnose ovarian cancer is looking at the cells under a microscope. There are tumour markers the doctors can test for called CA-125 and CA19-9 (both are blood tests) however numbers can be higher due to inflammation.
Fibroids, ovarian cysts, PCOS, and endometriosis are all symptoms of estrogen dominance (high estrogen but low progesterone levels). Ovarian cysts can affect the menstrual cycle. That said, in perimenopause estrogen and progesterone levels are irregular and missed menstrual periods are a symptom.
The average age for going through the menopause is 50 so you are doing well to get to 52 and still be menstrual well done . My friend is 44 and she hasn't had a period for 6 months her doctor did a special blood test to see if she was going through the menopause or not . Have youhad that test?