Perimenopause: the rollercoaster before the change

Your periods start arriving on their own schedule. You lie awake at 3am for reasons that stay a mystery. A word vanishes mid-sentence. And someone, somewhere, tells you that you look perfectly well. Welcome to the strange in-between that has a name, even when it feels nameless.

⏱️ 7-minute read · Words by Chiara Ugozzoli · Updated June 2026

TLDR: Perimenopause is the long, wavy stretch before your final period, when hormone levels rise and dip and your body keeps you guessing. It can run for years, the symptoms reach far beyond hot flushes, and naming what is happening is the first step toward feeling steady again.

So what exactly is perimenopause?

Think of perimenopause as the warm-up act that nobody warned you about. Your ovaries begin to wind down gradually, and the hormones that have shaped your cycles for decades start to fluctuate. According to the NHS, one of the first signs of perimenopause is usually a change to your periods: they may come closer together or further apart, and the bleeding may turn heavier or lighter. Eventually they stop altogether.

The word menopause is often used as a catch-all, yet it actually marks a single point in time. You reach menopause once 12 whole months have passed since your last period. Everything leading up to that milestone is perimenopause, and everything after is post menopause. So while you are still having periods, even erratic ones, you are most likely in the perimenopausal chapter. Understanding which stage you are in helps you make sense of the changes, and it shapes the kind of support that will suit you best.

Picture this. You are mid-meeting, mid-sentence, and the perfect word evaporates. Your heart does a small flutter. By the time you get home you have forgotten why you walked into the kitchen, and you wonder quietly whether this is just you now. It is a deeply common experience, and it has a hormonal story behind it.

Why does it feel like such a rollercoaster?

The rollercoaster feeling comes down to one word: fluctuation. During perimenopause your oestrogen levels rise and fall in an unpredictable rhythm, and that variability is what makes everything feel so changeable. One week you feel like yourself, the next you feel like a stranger borrowing your body. Many women describe waves of energy and clarity that wash in and out, and that ebb and flow is the hormonal tide at work.

This is also why a single blood test seldom gives you a clear answer. The UK’s National Institute for Health and Care Excellence (NICE) guideline NG23 advises that, in otherwise healthy women aged 45 or over, perimenopause can be diagnosed on clinical history alone when you have symptoms such as recently started hot flushes alongside changes in your menstrual cycle. NICE explains that follicle-stimulating hormone (FSH) tests offer little help in this age group precisely because hormone levels swing around so much during perimenopause. So when a clinician listens to your story and trusts the pattern over a one-off number, that approach follows the official guidance, and it is a sign of good, modern care.

Which symptoms actually count?

Here is where many women feel genuinely surprised, because the list reaches far wider than the famous hot flush. The NHS describes a whole constellation of perimenopause and menopause symptoms, and the experience is different for everyone. Some women sail through with barely a ripple; others feel knocked sideways.

Alongside changing periods, the NHS lists symptoms including:

• hot flushes and night sweats, when your face, neck and chest suddenly feel very hot
• trouble falling asleep or staying asleep
• mood swings, low mood, anxiety, and that foggy, hard-to-concentrate feeling many call brain fog
• weight gain, often around the stomach and upper body
• vaginal dryness, irritation, and discomfort during sex
• more frequent urinary tract infections (UTIs), joint and muscle aches, headaches, thinning hair, and drier skin

The NHS also explains that symptoms can shift over time: you might have hot flushes and night sweats for a while, and later find those ease while low mood and anxiety step forward. That moving target is part of what makes perimenopause so disorienting, and part of why so many women feel dismissed when they try to describe it. Seeing the full spread of symptoms can be a relief in itself, because it connects the dots between things that seemed unrelated.

One detail deserves a spotlight, because awareness here is still catching up. The NHS points out that ethnic background can shape how symptoms feel and how long they last. As an example, women from a Black ethnic background are more likely to have hot flushes that are severe and continue for longer. So when your experience feels more intense than the version your friends describe, your experience is valid and worth raising with a professional.

How long does this chapter last?

Take a breath before this part, because the honest answer surprises people. The NHS states that symptoms usually last for 7 to 9 years, and sometimes longer. Some symptoms, such as joint pain and vaginal dryness, may carry on after menopause has passed.

Reading that, you might feel a flicker of dread. Hold onto this instead: a long timeline is also a reassuring one. It means the strange, lurching weeks you are having now are a known stage with a known shape, and a sign that your body is doing exactly what bodies do. And because the chapter is long, there is real value in finding support early, so the years ahead feel as comfortable as possible.

Try this tonight: Keep a small notebook or a notes app by your bed and jot down three things each evening for two weeks: how you slept, your mood, and any physical symptoms such as flushes or aches. Patterns will start to surface, and a clear, written record makes any future conversation with your GP far easier and far more useful.

What gentle steps actually help?

The reassuring truth is that you have genuine options, and many of them are within your reach right now. Small daily habits give your body steady ground: regular movement you enjoy, a wind-down routine that protects your sleep, layers you can shed quickly when a flush arrives, and meals that keep your energy even through the day. These simple anchors help many women feel more like themselves.

When symptoms reach further into your daily life, your relationships, your work, your sense of joy, that is a clear signal to reach out for support. The NHS encourages women to contact their GP to talk through the options, and explains that early advice can soften the effects of perimenopause on your health, your relationships, and your working life. A good conversation might cover lifestyle support, talking therapies for mood, and medical options such as hormone replacement therapy, all weighed around your own health and preferences. Walking in with a clear sense of your most disruptive symptoms makes that appointment land where it counts.

One more flag worth holding clearly: once more than 12 months have passed since your last period and you then notice any vaginal bleeding, the NHS advises you to see a GP, even when it happens only once or there is only a small amount. It is usually harmless, and getting it checked promptly gives you peace of mind.

The gentle takeaway

Perimenopause is the long, looping bridge between one season of life and the next, and the lurching, unpredictable feeling is the whole point of it. Your periods shift, your sleep frays, your moods rise and fall, and through all of it you are entirely normal. Name what is happening, track your own patterns, lean on the habits that steady you, and ask for support the moment it would help. You deserve to feel like the leading character in this chapter, fully informed and fully in charge.

---

PrettyWell is a women’s lifestyle and wellbeing magazine. This article shares general information and wellbeing perspectives to help you ask better questions and feel more in charge; for anything about your own health, please speak with a qualified healthcare professional.

References

1. NHS. Symptoms of menopause and perimenopause. https://www.nhs.uk/conditions/menopause-and-perimenopause/symptoms/
2. National Institute for Health and Care Excellence (NICE). Menopause: identification and management (NG23), Recommendations. https://www.nice.org.uk/guidance/ng23/chapter/recommendations