The Perimenopause Symptoms Nobody Warns You About
You used to sleep like a rock. Now you don't!
And every time you try to explain it, someone tells you it's something else.
That was me in my late 30s and early 40s. My second child was a toddler, and I figured my sleep would come back once the kids got a little older and more independent. That moment never came.
I went to my doctor and explained: I used to be a perfect sleeper. Fall asleep easily, stay asleep, wake up rested. Now, nothing.
I was told I probably just needed to exercise more.
So I signed up for a gym membership on the drive home.
A few months later: still not sleeping.
I went back. This time I was offered Benadryl. It helped a little, but left me groggy most mornings—and I didn't love the idea of relying on an antihistamine indefinitely just to fall asleep. Eventually I asked for something else. That's when melatonin came up. It helped somewhat, but the chronic insomnia never actually resolved.
At one point, I was offered an antidepressant—not because anyone thought I was depressed, but because it can sometimes help with sleep. I said no. I wasn't depressed. I was, honestly, pretty happy. I just wasn't sleeping.
Next came a prescription sleep medication. It worked, but I didn't want to depend on it forever either.
So I kept searching.
My background in clinical research had taught me to keep asking questions when the pieces didn't fit.
Eventually, I found a doctor who finally connected the dots: what I was describing wasn't random, and it wasn't 'just stress' or 'just aging.'
It was perimenopause.
I remember feeling almost shocked—not because the explanation was complicated, but because it was so simple, and no one had said it to me before. Not my primary care doctor. Not my OB-GYN.
Four years of feeling like something was wrong with me, and the answer had been sitting there the whole time.
Looking back, I wish someone had simply said, 'This might be perimenopause.'
If This Sounds Familiar, You're Not Alone
Most of us grew up with one script for what perimenopause looks like: hot flashes, maybe some mood swings, and then menopause. That's the whole picture many of us were given.
The reality is much broader.
Perimenopause is a normal hormonal transition that often begins years before menopause. During this time, estrogen and progesterone don't simply decline—they fluctuate. Those hormonal shifts can influence sleep, mood, brain function, connective tissues, metabolism, and many other systems throughout the body. That means symptoms can appear long before your periods stop—and long before anyone mentions perimenopause.
Here are some of the lesser-known signs worth recognizing:
Sleep disruption with no obvious cause: Not just waking because you're hot. Genuine insomnia, difficulty staying asleep, or waking hours before your alarm, even when nothing else in your life has changed.
Rage or irritability that feels unlike you: A shorter fuse. Less patience. Feeling like your reactions no longer match your personality.
Brain fog and word-finding difficulties: Walking into a room and forgetting why. Losing your train of thought mid-sentence. Blanking on words you've used your entire life.
Anxiety that seems to come out of nowhere: Not necessarily tied to a stressful event—just a persistent feeling that something isn't quite right.
Joint aches and stiffness: Many women assume this is simply aging, when hormonal changes may also be contributing.
Changes in skin and tissue health: Estrogen helps support collagen and elastin throughout the body. As hormone levels fluctuate, some women notice changes in skin elasticity and other connective tissues they never realized were hormonally influenced.
None of these symptoms automatically mean you're in perimenopause. Many medical conditions can cause similar concerns, which is why it's important to discuss persistent symptoms with your healthcare provider.
But if several of these changes seem to arrive together during your late 30s or 40s, perimenopause deserves to be part of the conversation.
You're Not Broken—And You're Not Imagining It
If any of this sounds familiar, I want to say something I wish someone had said to me years earlier.
You're not broken. You're not overreacting. And you're certainly not lacking willpower.
You're moving through a real biological transition that affects every woman differently. The good news is that there are evidence-based strategies—from lifestyle changes to medical treatments—that can make a meaningful difference once you understand what's actually happening.
For me, the hardest part wasn't the insomnia. It was spending four years believing I was somehow failing to fix it.
If you're waking at 3 a.m., suddenly feeling anxious, struggling to concentrate, or simply feeling unlike yourself, don't automatically assume it's just stress or 'getting older.' Start paying attention to the patterns. Keep a simple symptom journal. Notice what changes over time. Sometimes recognizing the pattern is the first step toward finding the right answers.
Today, I help women navigate this stage of life with a practical, science-informed approach that combines evidence, sustainable lifestyle habits, and personalized coaching. My goal isn't just to help you get through perimenopause—it's to help you feel like yourself again.
If you're in the middle of that fog right now, know this: There is an explanation. There is support. And you don't have to figure it out alone.
— Susanna
Where I Recommend Starting
If you'd like to learn more about perimenopause from trusted, evidence-based sources, these are the trusted resources I recommend most often:
The Menopause Society – Clear, patient-friendly information on perimenopause, menopause, hormone therapy, sleep, and other common symptoms.
https://menopause.org/patient-educationAmerican College of Obstetricians and Gynecologists (ACOG) – Reliable information about perimenopause, menopause, hormone therapy, and women's health from the leading professional organization for OB-GYNs in the United States.
https://www.acog.org/womens-health
Enjoyed this article?
I'll be sharing practical, science-informed articles about perimenopause, metabolism, energy, sleep, and healthy aging. Check back for new posts—or download my free Metabolism Made Simple guide on my home page to get started with practical steps right away.
The information in this article is intended for educational purposes and should not replace personalized medical advice from your healthcare provider.