Photo by Vinicius das Neves on Unsplash
Hot flashes get the headlines. Most of perimenopause doesn’t look like that at all — which is exactly why it gets missed for years.
In short: The most common early signs of perimenopause are irregular or heavier periods, night sweats or waking at 3 a.m. for no reason, mood swings or a new irritability, brain fog, weight that climbs without any change in habits, and a noticeable dip in libido. Perimenopause can start in your late 30s or 40s, years before periods stop completely, which is why so many women are told their labs are “normal” while still feeling far from themselves.
Why perimenopause gets mistaken for something else
Perimenopause isn't a single event — it's a gradual hormonal shift that can last a decade or more before periods stop for good. Because it moves slowly and the symptoms overlap with ordinary life (stress, poor sleep, getting older), it's easy for both patients and clinicians to explain each symptom away individually. Put them side by side, though, and a pattern shows up.
The 10 signs, one at a time
Periods that changed. Heavier, lighter, closer together, further apart, or just different from your own normal.
Hot flashes. Sudden heat, sometimes with flushing, that can last seconds or minutes.
Night sweats. Waking up overheated, sometimes needing to change clothes or sheets.
Waking at 3 a.m. for no reason. Falling asleep fine, then wide awake in the middle of the night.
Mood swings or new irritability. A shorter fuse or a heavier emotional weight that doesn't feel like your normal range.
Brain fog. Losing your train of thought, misplacing words, feeling a step behind at work.
Weight that climbs. Especially around the middle, without a real change in diet or activity.
Lower libido. A drop in interest that's a change from how things used to be.
Joint aches. New stiffness or soreness that doesn't trace back to an injury.
Itching or ringing in the ears. Less commonly discussed, but a symptom some women report during this transition.
“But my labs came back normal”
This is the sentence Sarah hears most. Hormone levels don't move in a straight line during perimenopause — they fluctuate, sometimes within the same month. A single blood draw can land anywhere in that range and still look "normal," even while you feel anything but. That's why the first visit is built around your symptoms and your history, not just one lab result. Read more on why normal labs don't always mean nothing's wrong →
"Women no longer have to suffer through their symptoms. There is a treatment for menopause. My goal is to get you feeling like yourself again."
What actually helps
When it's appropriate, treatment uses bioidentical hormones, dosed to bring you back toward where you felt like yourself — not to a generic number. It isn't birth control and it isn't fertility treatment. If hormones aren't the right fit, Sarah will talk through honest non-hormonal options for sleep, hot flashes and mood, and you can start there instead. See how perimenopause & menopause care works →
Common questions
What age does perimenopause usually start?
It varies widely. Some women notice changes in their late 30s, most in their 40s. There isn't a single age that rules it in or out.
Can you be in perimenopause with normal-looking labs?
Yes. Hormone levels fluctuate throughout perimenopause, so a single normal-looking lab draw doesn't rule it out. More on why that happens →
Do you have to take hormones to feel better?
No. If hormones aren't right for you, there are honest non-hormonal options for sleep, hot flashes and mood, and that's a fine place to start.
Ready to talk it through? Book a first visit with Sarah Murphy, NP, in person in Hinsdale or by telehealth anywhere in Illinois.