Could This Be Perimenopause?
Updated: 6 days ago
Understanding the Menopause Transition
The signs of perimenopause can begin years before your periods stop, and they don’t always look like hot flashes. Here’s what may be changing, what to watch for, and when it’s time to ask for help.
Something feels different.
Maybe you’re not sleeping the way you used to. Your periods are changing. Your mood feels less predictable. Your brain feels a little foggier, your libido isn’t what it was, or your body seems to be changing despite doing all the same things.
And you find yourself wondering: Could this be perimenopause?
If you’re asking that question, you’re certainly not alone. One of the things I hear most often from women is, “I just didn’t realize perimenopause could start this early, or affect so many different things.”
It can. And understanding what’s happening is often the first step toward feeling a little more like yourself again.
Perimenopause can begin years before your periods stop, and the first signs may have very little to do with your menstrual cycle.
First, what exactly is perimenopause?
Perimenopause simply means “around menopause.” It’s the transition leading up to menopause, when ovarian function and hormone patterns begin to change.
Menopause itself is actually a point in time. For someone who isn’t using hormonal contraception or experiencing another cause of absent periods, menopause is generally recognized after 12 consecutive months without a menstrual period. Perimenopause is the transition that happens before that point (Office on Women’s Health, n.d.).
For many women, perimenopause begins in their 40s, although timing varies considerably. The transition often lasts several years, up to about 10 years (Office on Women’s Health, n.d.).
I love the way OB-GYN and menopause specialist Dr. Mary Claire Haver describes perimenopause: the “zone of chaos.” And when you understand what the hormones are doing during this stage, the description makes a lot of sense (Haver, 2025).
Perimenopause isn’t simply a slow, steady decline in estrogen. Hormone production becomes much less predictable. Estrogen can fluctuate significantly, while ovulation becomes less consistent and progesterone patterns change. That hormonal variability is one reason symptoms can seem to appear out of nowhere, disappear for a while, and then return (Office on Women’s Health, n.d.; The Menopause Society, n.d.-a).
Perimenopause isn’t a single moment or a single hormone level. It’s a transition, and for many women, it can feel like a “zone of chaos.”
You may feel perfectly fine for a while and then suddenly wonder what happened to the body you’ve lived in your entire adult life.
That unpredictability is the “zone of chaos”, and for many women, it’s a very fitting description.
What does perimenopause actually feel like?
Hot flashes and night sweats get most of the attention, but they’re only part of the story.
Some women have very obvious hot flashes. Others don’t have them at all.
Instead, the first thing they notice may be that they aren’t sleeping well anymore. Their cycles change. Their mood feels different. Their ears and eyes become maddeningly itchy. Sex becomes uncomfortable. Their concentration isn’t what it used to be. Or they simply tell me, “I don’t feel like myself.”
Symptoms and changes associated with the menopause transition can include, but are not limited to:
Hot flashes or night sweats
Difficulty falling asleep or staying asleep
Mood changes or increased irritability
Vaginal dryness, burning, or discomfort
Periods becoming shorter, longer, heavier, lighter, closer together, or farther apart
Pain or discomfort with intercourse
Urinary symptoms
Changes in sexual desire
Joint or muscle discomfort
Not every woman experiences all, or even most, of these. Some women may experience symptoms that aren't listed here. The menopause transition can look very different from one woman to another (ACOG, 2025a; NICE, 2026; The Menopause Society, n.d.-b).
And symptoms don’t necessarily arrive together.
You don’t need to be having dramatic hot flashes and skipping periods for perimenopause to be worth considering. Nice
“But my periods are still regular.”
This is where a lot of women get confused.
Perimenopause doesn’t suddenly begin the day your periods become irregular.
Hormonal changes and symptoms can occur while you are still menstruating, and changes in your cycle may initially be subtle. As the transition progresses, periods may become longer or shorter, heavier or lighter, or you may begin skipping cycles altogether (Office on Women’s Health, n.d.; The Menopause Society, n.d.-a).
That’s why I like women to look at patterns, rather than waiting for one unmistakable sign that says, Congratulations, you’ve entered perimenopause.
Tracking your cycle along with changes in sleep, hot flashes or night sweats, mood, headaches, libido, and vaginal or urinary symptoms can provide useful information to discuss with your healthcare provider. Office on Women's Health
What about hormone testing?
This is probably one of the most common questions I get.
And the answer requires a little nuance.
Hormone testing can provide useful information in the right clinical context, and I use laboratory testing in my practice when I think it will help answer a specific question or give us a broader picture of a patient’s health.
But a single hormone result cannot reliably tell us whether every woman is or isn’t in perimenopause.
Why?
Because hormone levels can fluctuate significantly from one day to the next during the menopause transition. A blood draw tells us what was happening at that particular point in time; it doesn’t necessarily tell the entire story.
For otherwise healthy women age 45 and older with typical menopause-associated symptoms and changes in their menstrual cycle, guidelines generally recommend identifying perimenopause clinically rather than relying on routine hormone testing. Testing may be appropriate in other circumstances, particularly when symptoms or menstrual changes occur at a younger age or when another medical condition needs to be considered (ACOG, 2025b; NICE, 2026).
Hormone levels can fluctuate dramatically during perimenopause, which is why a single lab result rarely tells the whole story.
So when I evaluate a woman who wonders whether she’s in perimenopause, I don’t want to look only at a number on a lab report.
I want to know:
What’s happening with your periods?
How are you sleeping?
Has your mood changed?
Has your digestion changed, or have you had increased bloating?
What happened to your libido?
Are you having hot flashes or night sweats?
Are you noticing itchy skin or dry eyes and ears?
Any vaginal or urinary changes?
And perhaps most importantly: What has changed for you?
Labs can be one piece of the clinical picture. They shouldn’t automatically become the entire picture. ACOG
Not everything in your 40's is perimenopause
This is equally important.
Once women learn how many different symptoms can occur around perimenopause, it can be tempting to attribute absolutely everything to hormones.
We shouldn’t do that either.
Sleep problems, fatigue, mood changes, hair changes, weight changes, palpitations, changes in menstrual bleeding, and difficulty concentrating can have other causes.
Depending on your symptoms and medical history, your healthcare provider may want to consider other possibilities, such as thyroid dysfunction, anemia or iron deficiency, medication effects, sleep disorders, pregnancy when applicable, or other medical conditions.
Good menopause care isn’t about blaming every symptom on hormones. It’s about looking at the whole picture.
When should you talk with a healthcare provider?
You don’t have to wait until your symptoms become unbearable.
If changes in your cycle, sleep, mood, sexual health, vaginal or urinary health, or other symptoms are affecting your quality of life, that’s enough reason to start a conversation.
Changes in bleeding deserve particular attention. Although menstrual changes are common during perimenopause, changes in your usual bleeding pattern may need evaluation rather than simply being assumed to be hormonal (The Menopause Society, n.d.-a).
And once menopause has occurred, new vaginal bleeding should be evaluated by a healthcare professional (Office on Women’s Health, n.d.).
Seek medical care promptly for bleeding that is unusually heavy or otherwise concerning, particularly if you are experiencing symptoms such as dizziness, weakness, or other signs that you may be losing a significant amount of blood. Office on Women's Health
You don’t have to wait until menopause to ask for help!
This may be the part I want women to hear most.
You don’t need to wait until you’ve gone 12 months without a period before your symptoms “count.”
And you definitely don’t have to wait until you’re miserable to start asking questions.
There are multiple ways to approach symptoms during the menopause transition. Depending on the woman, that conversation may include sleep, nutrition, exercise, stress, vaginal or urinary symptoms, non-hormonal treatment options, or, when appropriate, menopausal hormone therapy. Treatment should be individualized based on symptoms, health history, preferences, and the benefits and risks of the available options (NICE, 2026; The Menopause Society, n.d.-b).
You don’t need to wait until you’ve gone 12 months without a period before your symptoms “count.”
There isn’t one universal perimenopause plan because there isn’t one universal perimenopause experience.
The goal is to understand what is changing in your body, what is bothering you, what else needs to be considered, and what options make sense for you. Nice
You know your body. Pay attention when something changes.
If you’ve found yourself thinking, "Something feels different, but I can’t quite put my finger on it, " don’t dismiss that feeling.
Start paying attention to the patterns. What’s happening with your periods? How are you sleeping? Has your mood changed? What about your energy, libido, concentration, or the way you feel in your body? Are you noticing hot flashes, night sweats, or new vaginal or urinary symptoms?
You don’t need to have every classic symptom, or wait until your periods become completely unpredictable, to start asking questions.
Perimenopause is a normal transition, but struggling through it doesn’t have to be the expectation. Understanding what’s happening gives you the opportunity to have a more informed conversation about your health and the options available to you.
And perhaps most importantly, don't let a “normal” lab result convince you that what you're experiencing isn't real. Your symptoms, your health history, and the changes you've noticed in your own body are all part of the clinical picture.
You know your body better than anyone. If something feels different, it’s worth paying attention to, and worth having a conversation about.
About Dr. Anne Wells
Anne Wells, ND, FMCP-M, is a licensed naturopathic physician and founder of Adaptive Wellness, providing personalized, evidence-informed care with a focus on perimenopause and menopause, hormone health, metabolic health, digestive health, and healthy aging.
If you're wondering whether the changes you're experiencing could be related to perimenopause, I'd love to help you make sense of what's happening and explore your options.
This article is for educational purposes only and is not a substitute for individualized medical advice. Information provided here does not establish a doctor-patient relationship.
References
American College of Obstetricians and Gynecologists. (2025a). The menopause years. ACOG — The Menopause Years
American College of Obstetricians and Gynecologists. (2025b). Do I need to have testing of my hormone levels during perimenopause? ACOG — Hormone Testing During Perimenopause
Haver, M. C. (2025). Perimenopause and the Zone of Chaos: What no one taught us about perimenopause .Dr. Mary Claire Haver — Perimenopause and the Zone of Chaos
National Institute for Health and Care Excellence. (2026). Menopause: Identification and management (NICE Guideline NG23).NICE — Menopause: Identification and Management
Office on Women’s Health, U.S. Department of Health and Human Services. (n.d.). Menopause basics. Office on Women’s Health — Menopause Basics
The Menopause Society. (n.d.-a). Perimenopause.The Menopause Society — Perimenopause
The Menopause Society. (n.d.-b). Symptoms. The Menopause Society — Symptoms
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