Understanding Perimenopause: The Symptoms Nobody Warned You About

For many women, perimenopause can feel confusing. One day you feel like yourself, and the next you’re wondering why you’re exhausted, anxious, forgetful or suddenly unable to tolerate things that never bothered you before.

The challenge is that many women don’t realise these changes could be linked to perimenopause. While hot flushes and irregular periods are widely recognised, there are dozens of other symptoms that are less well known.

Understanding what perimenopause is and recognising its many possible symptoms can help women seek support sooner and feel less alone.

What is perimenopause?

Perimenopause is the transitional stage before menopause, when the ovaries gradually produce less oestrogen.

It can begin in a woman’s 40s, although some women experience it in their late 30s or earlier. Perimenopause may last for several months or several years before menopause occurs.

Menopause is officially diagnosed after 12 consecutive months without a menstrual period.

Why do symptoms vary so much?

Hormone levels during perimenopause do not decline in a straight line—they fluctuate, sometimes dramatically.

These changing hormone levels can affect many parts of the body, including the brain, heart, bones, muscles, skin and urinary system. As a result, symptoms can change from month to month and vary significantly between individuals.

Symptoms you may not expect

Every woman experiences perimenopause differently, but possible symptoms include:

Changes to your periods

• Irregular menstrual cycles.
• Heavier or lighter bleeding.
• Longer or shorter cycles.
• Skipped periods.

Brain fog

Many women describe:

• Forgetting words or names.
• Difficulty concentrating.
• Losing their train of thought.
• Feeling mentally slower than usual.

Anxiety and mood changes

Some women experience:

• Increased anxiety.
• Irritability.
• Mood swings.
• Feeling overwhelmed.
• Low mood or loss of confidence.

Even women with no previous history of anxiety may notice emotional changes during perimenopause.

Sleep problems

Hormonal changes can make it harder to:

• Fall asleep.
• Stay asleep.
• Feel refreshed in the morning.

Poor sleep can also worsen brain fog, mood and fatigue.

Hot flushes and night sweats

These are among the best-known symptoms and can range from mild warmth to intense episodes that disrupt daily life or sleep.

Joint and muscle aches

Many women are surprised to develop:

• Aching joints.
• Muscle stiffness.
• Shoulder or neck discomfort.
• Generalised body aches.

Heart palpitations

Some women notice their heart racing or skipping beats.

Although palpitations can occur during perimenopause, they should always be discussed with a healthcare professional, particularly if they are new, persistent or accompanied by chest pain, dizziness or breathlessness.

Changes in bladder health

Hormonal changes may contribute to:

• Increased urgency.
• More frequent urination.
• Recurrent urinary tract infections.
• Stress incontinence.

Vaginal and sexual health

Lower oestrogen levels may lead to:

• Vaginal dryness.
• Discomfort during sex.
• Reduced libido.
• Increased susceptibility to irritation or infections.

These symptoms are common and treatable, but many women feel uncomfortable discussing them.

Skin and hair changes

You may notice:

• Dryer skin.
• Increased skin sensitivity.
• Hair thinning.
• Changes in hair texture.
• More brittle nails.

When should you seek medical advice?

Many symptoms of perimenopause can also be caused by other health conditions.

It is important to speak to your GP if:

• Symptoms are affecting your quality of life.
• You experience very heavy or prolonged bleeding.
• Your periods stop suddenly before the age of 45.
• You develop persistent low mood or anxiety.
• You are unsure whether your symptoms are related to hormones.

Your GP may discuss lifestyle measures, non-hormonal treatments or hormone replacement therapy (HRT), depending on your symptoms, medical history and individual circumstances.

Looking after yourself during perimenopause

Simple lifestyle habits may help support your wellbeing, including:

• Regular physical activity.
• Strength training to support bone and muscle health.
• Eating a balanced, nutritious diet.
• Prioritising good-quality sleep.
• Managing stress.
• Limiting smoking and excessive alcohol consumption.
• Keeping up with routine health checks and screening appointments.

These changes may not eliminate symptoms but can improve overall health during the transition.

You don’t have to “just put up with it”

For generations, many women were told that menopause was simply something they had to endure. Today, we know far more about the impact hormonal changes can have on physical and mental health, and there are a range of treatments and supportive strategies available.

If something doesn’t feel right, don’t dismiss it as simply “getting older.” Understanding perimenopause can help you recognise the signs, seek advice earlier and make informed decisions about your health. Every woman’s experience is unique, and support is available if symptoms are affecting your daily life.

Medical Disclaimer

This article is intended for general information only and should not be considered medical advice. It should not be used to diagnose or treat any medical condition. If you have concerns about perimenopause, changes to your menstrual cycle or symptoms affecting your physical or mental wellbeing, speak to your GP or another qualified healthcare professional. If you experience severe pain, very heavy bleeding, chest pain or other emergency symptoms, seek immediate medical attention.

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