Perimenopause: The Decade Long Transition
By Dr. Jennifer Hopkins, DNP
Integrative Medicine Specialist | Certified in Hormone Health
Medical Director of Mindful Medicine
The Road Trip Nobody Warned You About
Perimenopause is not a destination. It is a road trip, and not the fun kind with good music and great snacks. It is a winding mountain road where the weather changes every five minutes. Your GPS keeps recalculating. You are pretty sure you missed a turn somewhere back around mile marker thirty seven, also known as age thirty seven, and everyone in the car is either crying or furious and nobody knows why.
That is perimenopause, and it can start in your mid thirties. Nobody told you that. I am telling you now.
Wait, Perimenopause Starts THAT Early?
A 2025 study found that over half of women between the ages of thirty and thirty five reported moderate to severe perimenopausal symptoms. Yet only five percent of millennial women knew perimenopause could start this early. So if you are in your thirties and something has felt off for a while, you are not the exception. You are the majority who never got the memo.
Early perimenopause does not mean something is wrong with you. It means your hormones are doing exactly what hormones do during this transition, shifting and fluctuating as your body begins a very long, gradual process that eventually leads to menopause, often a decade or more down the road.
The Symptoms Nobody Connects to Hormones
Heavy, clotty periods. One of the earliest signs of declining progesterone.
Anxiety that comes out of nowhere. Progesterone is your calming hormone. When it declines, anxiety rushes in to fill the space.
Brain fog and word finding trouble. Not early dementia. A 2024 study documented measurable declines in verbal memory during perimenopause, independent of age or depression.
Sleep that has never been the same. Falling asleep fine, then waking at 3 a.m. and staring at the ceiling.
Worsening PMS. Hormonal swings become more dramatic, so the dip before your period feels steeper.
Joint pain and stiffness. A study in Maturitas found 71 percent of perimenopausal women reported this, and almost none connected it to their hormones.
Thyroid overlap. Early perimenopause and thyroid dysfunction share nearly identical symptoms, which is why a full thyroid panel, not just a TSH, matters.
Why This Gets Missed So Often
A woman in her mid thirties describes several of the symptoms above. Because she is thirty six, perimenopause never makes it onto the list of possibilities. Instead, she is told she is stressed or handed an antidepressant.
You were never too young for this conversation. You were simply under-informed, and so was your doctor.
The Bottom Line
Anxiety, rage you do not recognize, brain fog, disrupted sleep, worsening PMS, and joint pain are not character flaws. They are hormones, and hormones can be tested, understood, and supported. You do not have to earn the right to feel well.
Want to Go Deeper?
This post only scratches the surface. In this week's episode of the Mindful Healing podcast, I walk through my own perimenopause timeline in real detail, exactly which hormone I started first and why, what full lab testing actually looks like, and how to advocate for yourself if you have been told you are fine.
Listen to the full episode here.
Wishing you love, light, and continued healing,
Dr. Hopkins