Welcome to EmpowHER and thanks for your question. If you’re over 35 you may be in perimenopause, the months or years of hormonal transition that lead up to menopause. Menopause occurs when it has been 12 consecutive months since your last period, but it’s rare for women to menstruate regularly until their periods suddenly stop. More commonly, women notice changes to their cycles five, ten or even fifteen years prior to reaching menopause.
There are also test to check your FSH levels this can evaluate menstrual problems, such as irregular or absent menstrual periods. This can help determine if indeed you are starting menopause. Here are some Articles and links that can help, but it is important to see your doctor and explain your symptoms.
Best of luck,