Is It Perimenopause or Anxiety? Why One Is Often Mistaken for the Other

Is It Hormones, or Is It Anxiety?

You're in your 40s. You're waking at 3 am with your heart racing, you feel on edge for no clear reason, and small things suddenly feel overwhelming.

It's easy to put it down to stress or wonder if you've developed anxiety. But for many women, these can be early signs of perimenopause.

According to Jean Hailes for Women's Health, anxiety is one of the most common mental health changes experienced by women in midlife. It can also be one of the first signs of perimenopause, sometimes appearing years before hot flushes begin.

Because the symptoms overlap so much, perimenopause, anxiety and high stress can be difficult to tell apart. Sometimes, all three are happening at once.

So, how can you tell whether your symptoms are related to hormonal changes, anxiety or everyday stress?

Understanding the differences, recognising potential signs of perimenopause and knowing when to seek support can help you make sense of what you're experiencing.

Why Does Perimenopause Cause Anxiety?

Perimenopause can directly affect mood, which helps explain why anxiety and hormonal changes often overlap.

Three main factors may contribute to anxiety symptoms during perimenopause.

1. Fluctuating Hormones

During perimenopause, oestrogen and progesterone levels rise and fall unpredictably.

Oestrogen influences brain chemicals associated with mood, including serotonin.

According to healthdirect Australia, these hormonal fluctuations may contribute to anxiety, irritability and low mood.

2. Disrupted Sleep

Night sweats, hot flushes and early waking can interrupt sleep during perimenopause.

Ongoing sleep disruption may leave you feeling more anxious, irritable and less able to cope with everyday stress.

This can create a difficult cycle in which poor sleep and anxiety affect one another.

3. Midlife Pressures

Perimenopause often occurs during a busy stage of life.

Caring for children or ageing parents, managing career demands, navigating relationship changes and dealing with financial pressures can all contribute to stress.

These pressures may cause or worsen anxiety independently of hormonal changes.

Women with a previous history of anxiety, depression, postnatal depression or severe premenstrual symptoms may also be more likely to experience mood changes during perimenopause.

Perimenopause vs Anxiety vs Stress: Comparing the Symptoms

Many symptoms of perimenopause, anxiety and high stress are similar.

The most useful clues often come from when symptoms begin, how they change and whether they occur alongside physical signs of perimenopause.

These symptoms are not enough to diagnose perimenopause or an anxiety disorder on their own.

However, looking at the overall pattern may help you identify what to discuss with your GP.

What Are the Signs That Anxiety May Be Related to Perimenopause?

Perimenopause may be contributing to your symptoms if:

• You're in your 40s or late 30s, and anxiety is new or feels different from anything you've experienced before.

• Your periods are changing in length, flow or timing.

• Symptoms appeared fairly suddenly and fluctuate from week to week.

• Mood changes occur alongside physical symptoms, such as hot flushes, night sweats, joint aches or vaginal dryness.

• You feel more irritable, angry or flat than sad.

• Your usual stress-management strategies no longer seem as effective.

These changes may suggest that hormonal fluctuations are playing a role.

However, anxiety, stress and perimenopause can occur together, so it's important not to assume that hormones are the only explanation.

How to Track Perimenopause Anxiety Symptoms

If you're unsure whether your symptoms are related to perimenopause, anxiety or stress, keeping a symptom diary for two to three months may help.

A simple diary can also provide useful information to discuss with your GP.

Each day, record:

1. Your menstrual cycle: Note where you are in your cycle or whether you've missed a period.

2. Your mood and anxiety: Rate how you're feeling on a scale of 1 to 10.

3. Your sleep: Record how well you slept and whether you woke feeling hot or sweaty.

4. Physical symptoms: Note any hot flushes, heart palpitations or headaches.

5. Daily stressors: Record any significant events or pressures that may have affected your mood.

Patterns linked to your menstrual cycle or night sweats may suggest a hormonal contribution.

Symptoms that consistently occur in response to particular situations may point more towards stress or anxiety.

For many women, the picture is a combination of both.

When Should You See Your GP About Perimenopause Anxiety?

According to healthdirect Australia, it's important to speak with your doctor if mood symptoms:

• Last longer than two weeks.

• Are becoming worse.

• Affect your work, relationships or daily activities.

• Disrupt your sleep on most nights.

There is no single test that can definitively distinguish perimenopause from anxiety.

Your GP may consider your age, symptoms, menstrual cycle, medical history and overall wellbeing.

They may also use a questionnaire or recommend blood tests to investigate other possible causes of similar symptoms, such as thyroid problems or low iron.

What Support Is Available for Perimenopause Anxiety?

The most appropriate support depends on what's contributing to your symptoms.

Your GP may discuss several options.

Psychological support

Cognitive behavioural therapy (CBT) and other forms of psychological support may help with anxiety and stress.

In Australia, a Mental Health Treatment Plan may provide access to Medicare-subsidised psychology sessions for eligible patients.

Menopausal hormone therapy (MHT)

MHT may help with mood symptoms, particularly when hot flushes or night sweats are also present.

Jean Hailes for Women's Health notes that hormone therapy may be worth considering when symptoms appear to be related to hormonal changes.

Antidepressant medicines

Antidepressants may be prescribed to help manage anxiety or depression and, in some cases, may also help with hot flushes.

Perimenopause-related mood changes are real and treatable. They shouldn't be dismissed as simply stress or something you need to push through.

Everyday Habits That May Help With Perimenopause Anxiety and Stress

Whether your symptoms are related to hormones, stress or a combination of both, several everyday habits may support your wellbeing.

Prioritise Quality Sleep

Keep your bedroom cool, use breathable bedding and establish a consistent wind-down routine.

These habits may be particularly helpful if night sweats or early waking are disrupting your sleep.

Include Regular Physical Activity

Regular movement, including strength training, supports mood, sleep and muscle health as oestrogen levels change.

Finding activities you enjoy can make it easier to maintain a consistent routine.

Consider Your Caffeine and Alcohol Intake

Caffeine and alcohol may worsen anxiety, heart palpitations, hot flushes and disrupted sleep.

Reducing your intake may help you identify whether either is contributing to your symptoms.

Make Time to Unwind

Breathing exercises, mindfulness and spending time outdoors may help you manage everyday stress.

Even a short walk can provide an opportunity to step away from daily pressures.

Stay Connected

Talking with friends, a partner or other women experiencing perimenopause may help you feel more supported.

Sharing experiences can also make it easier to recognise that mood changes during midlife are common.

Check Your Iron and Nutrition Basics

Heavier periods during perimenopause may contribute to lower iron levels and increased tiredness.

If you're experiencing heavier menstrual bleeding or ongoing fatigue, speak with your GP about whether your iron levels should be checked.

A balanced diet containing adequate protein, wholegrains, leafy greens, nuts and seeds can support overall energy and wellbeing.

If you're considering supplements, speak with your pharmacist about what may be appropriate for your stage of life and any medicines you're taking.

Supplements are not a substitute for medical care when anxiety or low mood is affecting your daily life.

The Bottom Line

Perimenopause, anxiety and high stress share many of the same symptoms, making it difficult to tell one from another.

Feeling on edge, experiencing heart palpitations, struggling with sleep or noticing changes in your mood may be associated with hormonal fluctuations, everyday stress or an anxiety condition.

The biggest clues are often your age, changes in your menstrual cycle and physical symptoms such as hot flushes and night sweats.

Tracking your symptoms over time can help you recognise patterns and provide useful information for your GP.

Most importantly, you don't have to manage persistent anxiety or mood changes alone.

Whatever the cause, support is available.

Need to talk to someone now?

In Australia, contact Beyond Blue on 1300 22 4636 or Lifeline on 13 11 14.

In an emergency, call 000.

This article provides general educational information and is not a substitute for advice from a healthcare professional. If symptoms persist or affect your daily life, speak with your GP or another qualified healthcare professional.

References

1. healthdirect Australia. Mental Health and Menopause.

2. Jean Hailes for Women's Health. Top Five GP Questions on Menopause and Mental Health.

3. RACGP newsGP. Perimenopausal Depression Challenging to Diagnose. 2018.

4. AnswerThePublic. Perimenopause Anxiety and Perimenopause Search Reports, English/Australia. 4 November 2026.

5. AnswerThePublic. Anxiety Search Report, English/Australia. 25 March 2026.