Not sure if it’s perimenopause? Use this checklist of early signs, from sleep and mood to joints and brain fog, plus what to track and what to ask your provider.
You notice it in the small things first.
Sleep that won’t hold. A short fuse you don’t recognize. A fog that settles over your day. Maybe your periods are a little different, or maybe they aren’t at all, and you’re not having hot flashes, so you assume it can’t be perimenopause.
If that’s you, I want to say this first: you’re not imagining it.
You don’t need hot flashes to be in perimenopause.
Hormones can swing for years before your periods stop, and the first signs are easy to blame on stress, aging, or “just being busy.”
This post gives you a checklist of early signs, explains what’s happening, and covers what I look at from a functional medicine and pharmacist perspective. It’s educational and isn’t a substitute for care from your own healthcare team. Numbers in brackets point to the references at the end.
Perimenopause is the transition leading up to menopause, which is defined as 12 months without a period. During this time, your ovaries’ hormone production becomes less predictable. It’s not a steady decline. Estrogen and progesterone can swing widely from month to month, and even from week to week.[1]
And sometimes earlier. How long it lasts varies a lot from person to person. (See symptoms in your early 30s.)
Early on, cycles often get a little shorter or longer, or the flow changes. Later, you may skip periods for months at a time.[1]
Not by a single blood test. Because hormones swing so much, one test can look normal one day and very different the next.[3]
Guidelines say that in women over 45 with typical symptoms, perimenopause can be diagnosed without hormone testing.[2] So if your labs came back “normal” and you were told it’s not perimenopause, that may not be the whole answer. (More on why labs and symptoms belong together.)
Tap each one that fits. This isn’t a diagnosis. It’s a way to organize what you’ve been noticing, and your total shows up at the end.
Often the first thing to change. Difficulty sleeping becomes much more common through the transition.[4], [5]
More in why you can’t sleep.
You can still get pregnant during perimenopause, so contraception still matters until menopause is confirmed. And hormonal birth control can mask your cycle changes. I cover that in birth control in perimenopause.
Common in the transition, even in women with no history of depression.[6], [7]
More in anxiety or perimenopause.
In one large study, women in the early stages of the transition showed temporary dips in learning that recovered afterward.[8] It’s real, and for most women, it improves.
Vaginal and urinary changes are common and often under-reported. They respond well to treatment, so please bring them up.[12] (More on low desire in midlife.)
The ones everyone knows. They often come later than the rest of this list.
Signs across 0 groups
Tap any signs above that sound like you.
There’s no magic number. Many of these symptoms overlap with other conditions, so the goal is to look at the whole picture.
If you checked a few boxes, a good first step is understanding your pattern. My free Hormone Type Assessment is a short quiz that helps you see whether your symptoms point toward one of these, so you know what to ask about next:
This is the part I care about most as a functional medicine practitioner. Perimenopause isn’t the only thing that causes these symptoms, and sometimes it’s more than one thing at once. I always rule out:
Thyroid disease is common in midlife women, and it can cause fatigue, mood changes, sleep problems, weight changes, and hair thinning.[13]
Low levels can cause fatigue, brain fog, and low mood. (See the hidden causes of anemia.)
Swings can look like anxiety, fatigue, and sleep trouble. (See why fasting insulin matters.)
It becomes more common after menopause, and it’s often missed in women.
Caffeine, alcohol, and some medicines.
Perimenopause can trigger them, but they also deserve their own care.
I cover this in being told it’s “just stress”.
When someone says, “I think it might be perimenopause,” I look at the whole picture:
When symptoms started, how your cycles changed, and what else is going on in your life.
Thyroid with antibodies, ferritin with a CBC, B12, vitamin D, fasting glucose and insulin, A1c, and lipids. Hormone testing can be useful in some situations, but one number rarely tells the story.
Timing, interactions, and side effects.
How you sleep, and how much you’re carrying.
Blood pressure, cholesterol, and mammograms. Midlife is a good time to check them. (See proactive breast health.)
I also use my four working patterns to organize what I find:
Wired at night, tired by day, 3 a.m. wake-ups, night sweats
Fatigue, brain fog, hair shedding, low iron or nutrients
Blood sugar swings, cravings, stubborn midsection weight
Bloating, breast tenderness, puffiness, alcohol hitting harder
These are clues that organize questions. They don’t diagnose a cause.
You don’t have to wait for a diagnosis to support your body:
For a few weeks. A simple note on your phone is enough, and this checklist is a good place to start.
A steady schedule, morning light, a cool room, and less alcohol.
And keep your blood sugar steady. (Here are protein sources that support hormonal stability.)
Muscle and bone matter more in midlife. (See why grip strength predicts longevity.)
Especially late in the day.
Magnesium, vitamin D, and others may help some people, but test and check first.
These are the magnesium and vitamin D products I carry. Check with your provider first, especially if you take medications or have a health condition.
Products shown are available through my Fullscript dispensary. Farmacy Counter may earn a commission on purchases.
For many women with bothersome symptoms, menopausal hormone therapy is an option, and it’s most effective for hot flashes and night sweats. The best candidates are generally women under 60, or within 10 years of menopause, without certain health risks.[14] It’s a personal decision with benefits and risks. I cover it in the benefits and risks of hormone therapy and how hormone therapy dosing really works.
Please talk with your healthcare provider promptly if you have very heavy bleeding (soaking through a pad or tampon every hour for several hours), bleeding that lasts more than seven days, periods closer than 21 days apart, bleeding between periods or after sex, or any bleeding after menopause. Call right away for chest pain, shortness of breath, or fainting.
And if your mood is heavy and doesn’t lift, or you’re having thoughts of harming yourself, talk with your provider, a mental health professional, or emergency services right away.
Perimenopause is a natural transition, but it doesn’t have to be one you go through in the dark.
If you haven’t yet, start with the free Hormone Type Assessment. And if you’d rather talk through what you’ve been noticing, I offer a free discovery call. No pressure, just a conversation about whether functional medicine is the right next step for you.
Book Your Free Discovery Call →To your health and vitality, Dr. Ryan
Early signs often include sleep changes such as waking at 2 to 4 a.m., cycle changes, irritability or anxiety, brain fog, fatigue, and joint aches. Hot flashes and night sweats often come later.
Yes. Many women notice sleep, mood, cycle, and brain changes long before hot flashes begin, and some never have significant hot flashes.
Usually not on its own. Hormone levels swing widely during perimenopause, so one test can look normal. Guidelines say women over 45 with typical symptoms can be diagnosed without hormone testing.
Yes. Pregnancy is still possible until menopause is confirmed, so contraception still matters if you don’t want to become pregnant.
Thyroid disease, low iron, B12, or vitamin D, blood sugar swings, sleep apnea, medications, depression, and burnout can all cause overlapping symptoms, so it’s worth ruling them out.
For educational purposes only. Not a diagnosis, and not a substitute for care from your healthcare provider or a licensed mental health professional. Do not start, stop, or change any medication, including hormone therapy, without talking with your prescriber.
