Perimenopause symptoms: the checklist worth bringing to your GP
Perimenopause rarely announces itself. It arrives as broken sleep, a shorter fuse, aching joints and a cycle that stops behaving, often years before anyone says the word menopause. Here is what to look for, what to track, and when to book.
The short answer
Perimenopause is the transition phase before menopause, when ovarian hormone levels start to fluctuate. It most often begins in your 40s, sometimes in your late 30s, and typically lasts around four to eight years.
A change in your menstrual cycle is usually the first sign: cycles becoming shorter, longer, heavier or less predictable. Alongside it come hot flushes, night sweats, disturbed sleep, mood changes, brain fog, joint aches and vaginal or urinary symptoms.
If you are over 45, no blood test is usually needed. Perimenopause is diagnosed from your symptoms and cycle pattern, which is why a good symptom record is the single most useful thing you can bring to your appointment.
Why perimenopause is so easy to miss
Most women expect menopause to look like hot flushes at 51. What actually arrives first, often in the mid 40s, is quieter and more confusing: waking at 3am for no reason, feeling irritable in a way that does not feel like you, forgetting words mid sentence, new aches, a cycle that shortens from 28 days to 24. Each symptom on its own has a dozen possible explanations. That is exactly why it gets missed, by patients and by rushed ten minute consultations alike.
The hormones driving this, mainly fluctuating oestrogen and falling progesterone, do not decline in a neat straight line. They swing. That is why symptoms can be terrible for two months, vanish for three, and return, and why a single hormone blood test on one day often tells you very little.
The pattern is what matters. A cluster of the symptoms below, appearing together in your 40s alongside any change in your cycle, is perimenopause until proven otherwise, and it deserves a proper, unhurried conversation with a GP who works in this area.
The perimenopause symptoms checklist
Go through the six groups below and note which symptoms you recognise. You do not need many. Even three or four, together with a cycle change, is a pattern worth discussing.
Group 1 · Usually first
Your cycle
The most reliable early signal, and the one most often ignored.
- Cycles becoming shorter (for example 28 days down to 24)
- Cycles becoming longer, irregular or skipped
- Noticeably heavier periods, flooding or clots
- Lighter or shorter periods than usual
- New or worsening premenstrual symptoms
Group 2 · Vasomotor
Heat and sweats
The classic symptoms, affecting around three in four women at some stage.
- Hot flushes: sudden waves of heat in the face, neck and chest
- Night sweats, sometimes drenching
- Feeling suddenly cold or shivery after a flush
- Heart racing or palpitations with or without flushes
Group 3 · Sleep
Sleep
Often the symptom that finally drives women to book an appointment.
- Waking in the early hours and struggling to get back to sleep
- Difficulty falling asleep despite being exhausted
- Sleep broken by night sweats
- Waking unrefreshed, with daytime fatigue that rest does not fix
Group 4 · Mood and thinking
Mood and cognition
Frequently misread as stress, burnout, depression or worsening ADHD.
- Irritability or a much shorter fuse than usual
- New or worsening anxiety, including waking with dread
- Low mood or flat motivation
- Brain fog: losing words, names and your train of thought
- Trouble concentrating or holding focus at work
Group 5 · Body
Aches, skin and body changes
The symptoms least often connected to hormones.
- New joint aches and muscle pains, often worse in the morning
- Headaches or migraines changing pattern or frequency
- Breast tenderness
- Weight shifting to the middle despite unchanged habits
- Dry or itchy skin, thinning hair, brittle nails
- Dizziness or light-headedness
Group 6 · Genitourinary
Intimacy and bladder
Very common, very treatable, and the least talked about.
- Vaginal dryness or discomfort
- Pain with sex
- Lower libido
- Needing to pass urine more often or more urgently
- Recurrent urinary tract infections
See your GP promptly, not just for perimenopause
Some bleeding patterns need proper assessment in their own right rather than being put down to hormones. Book a review soon if you notice any of the following:
- Very heavy bleeding, flooding through protection, or large clots
- Bleeding between periods
- Bleeding after sex
- Any bleeding at all after 12 months without a period
When it looks like your ADHD is getting worse
There is one overlap we see often enough at Rosedale that it deserves its own mention. Oestrogen supports dopamine signalling in the brain. When oestrogen starts fluctuating in perimenopause, women with ADHD frequently find their medication seems to stop working as well: focus slips, working memory worsens, emotional regulation gets harder. Women who were never diagnosed sometimes present for the first time in their 40s, wondering why their coping systems have suddenly collapsed.
If that sounds familiar, it is worth reading our explainer on the oestrogen and dopamine connection, and raising both issues in the same appointment. Because Rosedale provides ADHD continuation care alongside menopause care, both can be looked at together rather than in two disconnected clinics.
You are not imagining it
Brain fog, focus problems and emotional volatility in your 40s can be perimenopause, ADHD, or both at once. The treatment decisions differ, so the assessment should consider both.
What to track before your appointment
You do not need months of perfect data. Two to three cycles of simple notes turns a vague "I just feel off" conversation into a productive one, and it is often what makes the diagnosis clear without any tests at all.
- Cycle dates: first day of each period, how long it lasted, and how heavy it was compared with your normal
- Your worst three symptoms: pick the three that affect your life most and rate each out of 10 a few times a week
- Sleep: roughly when you wake in the night and whether sweats are involved
- Triggers you notice: alcohol, caffeine, stressful weeks, where you are in your cycle
- Your health background: current medications and supplements, plus any personal or family history of breast cancer, blood clots or heart disease, which shapes the safest treatment options for you
A notes app is fine. So is a paper diary. What matters is that the pattern arrives at the appointment with you.
What happens with your checklist at your first appointment
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1
Book a 40 minute consultation
Not a standard 15 minute slot. You book online, in person in West Pennant Hills or by telehealth anywhere in NSW, with the fee published before you confirm.
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2
Your story, properly heard
We go through your symptoms, cycle record, health history and what matters most to you, without rushing you out the door.
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3
Checks where they add value
Over 45, diagnosis is usually clinical. Where tests are useful, pathology is on site, and we review other causes of your symptoms rather than assuming.
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4
A plan decided together
Lifestyle measures, menopausal hormone therapy where appropriate, non-hormonal options, and a review to fine-tune, chosen with you, not for you.
Common questions
Do I need a blood test to diagnose perimenopause?
Usually not if you are over 45. Hormone levels swing so much during perimenopause that a single test can look normal on a bad week and abnormal on a good one, so Australian guidelines support diagnosing on symptoms and cycle pattern. Blood tests become more useful under 45, and are important under 40 to look for premature ovarian insufficiency, or when we need to rule out other causes such as thyroid problems or iron deficiency.
At what age does perimenopause start?
Most commonly in the mid 40s, though it can begin in the late 30s. The average age of menopause itself, meaning the final period, is around 51 in Australia. Perimenopause typically lasts four to eight years before that point, which is why symptoms in your early to mid 40s are worth taking seriously rather than waiting.
Can I be in perimenopause if my periods are still regular?
Yes. Hormone fluctuations can produce flushes, sleep disturbance, mood changes and brain fog before your cycle visibly changes. A regular cycle makes perimenopause less obvious, not impossible, and subtle changes such as a cycle shortening by a few days often go unnoticed until you track it.
Can the pill or an IUD hide perimenopause?
They can mask the cycle signal. The combined pill usually gives you a regular withdrawal bleed regardless of what your ovaries are doing, and a hormonal IUD often stops periods altogether. In that situation we rely more on the other symptom groups, your age, and sometimes targeted testing, which is a conversation worth having rather than guessing.
What is the difference between perimenopause and menopause?
Perimenopause is the transition, the years of fluctuating hormones and symptoms while you are still having periods, however irregular. Menopause is technically a single point in time: 12 months after your final period. Everything after that is postmenopause. Many women are surprised to learn the most symptomatic years are often the perimenopausal ones.
How is menopause care structured at Rosedale?
Menopause consultations at Rosedale are booked as dedicated 40 minute appointments with a GP who works in menopause care, in person in West Pennant Hills or by telehealth anywhere in NSW. The first consultation is $330 with a Medicare rebate of $128.35. Full details, fees and online booking are on our menopause care page.
Recognise the pattern? Bring it to us.
A 40 minute menopause consultation with a GP who listens, in person in West Pennant Hills or by telehealth anywhere in NSW.
This article is general information for people in NSW and does not replace personalised medical advice. Symptoms listed here can also have other causes, which is part of what a consultation is for. Written by Dr Natasha Paul, FRACGP, Rosedale Medical Practice, 70 Castle Hill Road, West Pennant Hills. Caring for Hills District families since 1997.