Do I Have ADHD or Is It Perimenopause? Here’s How to Tell

ADHD? Or Perimenopause?

By Leanne Mulheron

You were fine. And then, somewhere in your late thirties or forties, you weren’t.

You’re losing words mid-sentence. You’re forgetting things you would never have forgotten before. You’re snapping at people you love and crying in the car afterwards, not entirely sure what just happened. Work feels like wading through concrete. And then there’s the anxiety – the low-grade, constant, causeless anxiety that has taken up residence somewhere in your chest and will not leave.

You’ve probably googled it. You’ve read about perimenopause. You’ve read about ADHD. And now you’re staring at two symptom lists that look confusingly similar, trying to work out which one is you.

Here’s the thing – and this might be the most useful sentence in this entire article: it might not be either/or. And what you’re dealing with is very likely more complex, and more interconnected, than any single explanation will capture.

Perimenopause is not just a physical event

The dominant cultural narrative about perimenopause focuses on the physical: hot flushes, night sweats, changes to your cycle, joint pain. These are real. But for a significant proportion of women, the psychological symptoms arrive first, land hardest, and are the last things anyone thinks to connect to hormones.

Oestrogen is not simply a reproductive hormone. It actively regulates multiple neurotransmitter systems in the brain – including serotonin (which affects mood and emotional stability), dopamine (which affects focus, motivation, and reward), GABA (the brain’s primary calming system), and norepinephrine (which affects attention and arousal). When oestrogen fluctuates and declines during perimenopause, all of these systems are disrupted simultaneously.

But hormonal fluctuations don’t happen in a vacuum. They land in the middle of a particular season of life – one that often involves ageing parents, adolescent children, relationship strain, career pressure, and a cumulative load of unpaid labour that has been building for decades. Many women arrive at perimenopause already running on empty. The hormonal changes don’t create that exhaustion from scratch; they interact with it, and often amplify it significantly.

The result is a complex, shifting psychological landscape that is routinely misattributed to stress, burnout, anxiety disorder, or depression – without the full picture being identified. Many women are prescribed antidepressants or referred for anxiety treatment without anyone asking: when did this start, what has changed hormonally, and what else is happening in your life right now?

The Psychological Symptoms of Perimenopause (That Nobody Warned you About)

These are the symptoms that most often bring women to a psychologist in perimenopause – and that most often get misidentified as something else:

Anxiety New-onset anxiety is one of the most common presentations of perimenopause, and one of the most consistently missed. It often feels like a constant background hum of unease – or sudden surges that can feel like panic. When anxiety feels disconnected from anything actually happening in your life, that often points toward a neurochemical driver. But it is also worth noting that many women in midlife are carrying genuinely stressful lives – and hormonal changes can lower the threshold at which normal life stress tips into something that feels unmanageable. Both things can be true at once.

Low mood and depressive episodes Perimenopause-related low mood is not always the persistent, heavy depression of a clinical depressive episode. It can be episodic – lifting and returning without obvious reason – and tied to oestrogen fluctuation and its effects on serotonin availability. Women describe a flatness, a loss of colour in things that used to feel meaningful, a heaviness that comes and goes. This can also intersect with the identity shifts of midlife – the quiet grief of roles changing, children leaving, a reassessment of what your life looks like and whether it matches who you thought you’d be by now.

Rage This one is discussed almost nowhere, which means women who experience it carry it in isolation and shame. Perimenopause can produce intense, disproportionate anger – a short fuse that has appeared from nowhere, explosive reactions that frighten the woman herself. The neurobiological conditions are real: disrupted GABA, sleep deprivation, and accumulated load all contribute. But so does something less biochemical – the pressure of being chronically over-responsible, perpetually last on your own list, and now finding that the coping mechanisms that used to absorb all of that simply no longer work. The rage is not only neurochemistry. Sometimes it is also a signal.

Emotional lability A disproportionate emotional responsiveness – crying at things that wouldn’t previously have moved you, swinging between states more quickly than feels rational, being undone by frustrations your former self would have absorbed without difficulty. This is driven by neurochemical instability, but it is often compounded by sleep deprivation, which is its own significant source of emotional dysregulation and deserves attention in its own right.

Cognitive changes Word-finding difficulties, working memory lapses, slowed processing speed, reduced executive function. Women describe forgetting the names of people they know well, losing their train of thought mid-sentence, finding that planning and organising tasks that were previously effortless are now genuinely difficult. For women who have built their professional and personal lives on their cognitive sharpness, this is often the most distressing symptom of all. Poor sleep – which perimenopause frequently disrupts – compounds cognitive difficulties substantially, and addressing sleep is sometimes the most direct lever available.

Loss of confidence A sudden, inexplicable erosion of the self-assurance that took decades to build. Walking into rooms you have owned for years and feeling uncertain. Doubting decisions you would previously have made without hesitation. This is partly neurochemical, but it is also shaped by a culture that does not exactly celebrate women in midlife – and by the very real experience of watching yourself change and not knowing why.

Derealisation – feeling ‘not myself’ A sense of watching yourself from a slight remove. Not quite feeling present in your own experience. Being in your life but slightly outside it. This is disorienting in a way that is very hard to articulate, and very hard to seek help for. It is reported frequently enough in perimenopause to be worth naming clearly – and it is often worsened by the isolation of not having language for what is happening.

Now, Where ADHD Enters the Picture

Look at that list again. Difficulty sustaining focus, emotional dysregulation, cognitive difficulties, anxiety, fatigue, irritability, feeling unlike yourself. These symptoms are also characteristic of ADHD – which is why the question ‘do I have ADHD or is it perimenopause?’ is so genuinely difficult to answer.

The overlap is not a coincidence. It has a shared neurological explanation.

The third column – the overlap – is significant. These are not vague, general symptoms. They are specific, debilitating, and they sit squarely at the intersection of both conditions. The reason they appear in both is that both ADHD and perimenopause disrupt the same underlying neurochemical systems.

The Oestrogen-Dopamine Connection

Oestrogen plays an active role in regulating dopamine – the neurotransmitter most closely associated with focus, motivation, impulse control, and emotional regulation. When oestrogen is stable, it provides a kind of neurochemical scaffolding that supports dopamine function in the prefrontal cortex -the part of the brain responsible for executive function.

ADHD is characterised by differences in how the brain regulates dopamine. Women with ADHD often find that with adequate oestrogen levels, they can compensate well enough to function. Not without effort – ADHD is always effortful – but manageably.

Perimenopause removes that scaffolding. As oestrogen starts to fluctuate and decline, the dopamine support it was quietly providing wavers and then withdraws. For a brain that was already working harder than average to regulate attention and emotion, this is not a small shift. It is the removal of the system that was holding everything up.

This is why so many women describe perimenopause as the point at which they stopped being able to cope. But it is worth being precise about this: for many women, it is not simply that hormones changed. It is that the hormonal shift coincided with peak life load, disrupted sleep, and the quiet collapse of coping strategies that had been held together with considerable effort for a very long time. The hormonal change is often the tipping point — but the load had been accumulating long before.

How to Begin Distinguishing Between Them

The honest answer is that a proper assessment is the clearest path. But there are some useful questions to hold in the meantime:

Pattern over time ADHD is neurodevelopmental – its roots go back to childhood, even if it was never recognised. Can you see the signs in your younger self? The report cards that said ‘bright but not applying herself.’ The sense of working twice as hard as everyone else for the same result. The anxiety that lived underneath competence. Perimenopause, by contrast, arrives – there is a before and an after, usually somewhere in the late thirties or forties.

The nature of the anxiety ADHD-related anxiety tends to be tied to specific triggers – fear of failure, rejection, forgetting something important. Perimenopausal anxiety often presents as free-floating: a constant, causeless unease that exists independently of circumstances. That said, it is also worth asking honestly: how much actual pressure are you under? Sometimes anxiety that feels causeless is, on closer inspection, a reasonable response to an unreasonable amount of responsibility.

Cycle timing If your psychological symptoms follow a noticeable pattern around your menstrual cycle – worsening in the week or two before your period and improving afterwards – that points toward a hormonal driver. ADHD symptoms are more consistent across the month, though they can worsen at certain hormonal points.

Sleep This one is underrated as a diagnostic consideration. Perimenopausal sleep disruption – whether from night sweats, light sleep, or waking in the early hours with a racing mind — can on its own produce symptoms that closely mimic both ADHD and anxiety. If your sleep has changed, that is relevant information worth bringing to any assessment.

The masking question Many women with ADHD describe a lifetime of working incredibly hard to appear organised and competent while feeling secretly chaotic. This is called masking, and it is exhausting. If the ‘sudden’ deterioration in your forties feels like a collapse rather than a change – if it feels like something gave way rather than something arrived – it is worth exploring whether you have been white-knuckling a coping system that multiple converging pressures have finally made unsustainable.

Its Often Not Either/Or

This is the piece that gets missed most often, and it matters enormously for how women understand themselves and seek support.

Many women who come seeking help for perimenopause symptoms turn out to have had undiagnosed ADHD their whole lives. The perimenopause didn’t create the ADHD – it exposed it. The declining oestrogen removed the buffer that was unknowingly helping them compensate.

Equally, women who have been managing diagnosed ADHD reasonably well often find perimenopause destabilises what was previously working. Their ADHD hasn’t worsened – the hormonal context supporting it has changed.

And for almost all of them, there is a third layer: the accumulated weight of midlife itself. The sleep debt. The relational load. The identity renegotiation. The particular exhaustion of being a woman in her forties who has spent years being competent and is now, for reasons she cannot fully explain, finding that very hard to sustain.

In all of these cases, treating one thing in isolation is not the answer. Understanding the full picture is.

What To Do If You’re Not Sure

The clearest way forward is a conversation with a registered professional who understands female ADHD and  the hormonal context – because in midlife women, the two cannot meaningfully be separated. And a good clinician will also be asking about sleep, stress load, life circumstances, and the broader context of your life, not just ticking symptom boxes.

A good assessment takes your full history into account, not just your current presentation. It asks about childhood, about patterns across your life, about how you have coped and what that coping has cost you. It gives you something more useful than a label – it gives you an accurate framework for understanding what is actually going on.

You don’t need a GP referral to book an ADHD assessment in Australia. You can book directly. And a psychologist who also understands perimenopause can help you navigate both at once – not as two separate problems, but as the interconnected picture they actually are.

Because they’re not separate. They’re the same woman, in the same brain, at the same complicated – and entirely navigable – point in her life.

If this is resonating, we’d love to talk. Book a complimentary intake call with our team – we specialise in exactly this intersection, and we’ll help you work out what’s actually going on.