Why OVERWHELM is one of the most common, and least talked about symptoms of perimenopause

by Dr. Shawna Darou, ND in Perimenopause

You don’t wake up one day thinking, “I can’t handle life anymore.”

But somewhere in your 40s or 50s, that inner capacity - the calm under pressure, the ability to multitask, hold everything together, and still smile - begins to fade.

Suddenly, simple things feel harder. You cry more easily. You snap faster. You’re exhausted even after sleeping. And when you tell someone you feel overwhelmed, they say, “Of course you do - your life is stressful.”

They’re right, but they’re also missing something important. Overwhelm isn’t just the product of a busy life. It’s the body’s physiological response to shifting hormones, a changing brain, and a nervous system that’s running without the same buffering it once had.

And here’s the thing - when you understand what’s happening, you can stop blaming yourself and start rebuilding your resilience in a way that fits who you are now.

The Overlooked Collision: Life Pressure + Hormonal Transition

For most women, the 40s and 50s are the peak pressure years. We’re caring for teenagers (and sometimes aging parents), leading teams at work, managing households, and often putting everyone else first.

Clinically, it’s easy to dismiss new anxiety, irritability, or cognitive fatigue as simply “stress from life.” But there’s a hidden layer: the neuroendocrine system is reconfiguring. You are entering a physiological state of greater sensitivity to stress - while your external load is already heavy. That’s why so many narratives start with, “I thought it was just burnout…until the overwhelm wouldn’t quit.”

Let me bring you in more deeply into the science - because when you see what’s happening in your brain and body, overwhelm stops being a character flaw and becomes a signal you can respond to.

The Science Behind Overwhelm

Perimenopause isn’t just about missed periods and hot flashes - it’s a neuroendocrine transition that changes how your brain and stress systems function. Let’s break down what’s happening:

Progesterone, GABA Calm Pathway

Progesterone converts into a neurosteroid called allopregnanolone, which enhances the brain’s GABA-A receptors, which are your built-in calm system. GABA quiets brain activity, eases anxiety, and helps you feel grounded.

As progesterone declines and fluctuates, your GABA signaling weakens, meaning you lose that sense of calm. Small stressors hit harder. You may feel anxious for no clear reason, experience insomnia, or have more emotional reactivity. Essentially, your “brake system” for stress starts to misfire.

Estrogen, Cortisol, and Stress Resilience

Estrogen directly influences the HPA axis, which is the body’s main stress response system, modulating neurotransmitters like serotonin, dopamine, and acetylcholine.

It’s not just estrogen decline, but fluctuation that matters. Studies find that large week-to-week estradiol swings predict greater mood sensitivity and cortisol reactivity in perimenopausal women.

Estrogen also supports brain areas responsible for focus and executive function, so as levels drop, your ability to multitask or organize may falter. This is one reason many women are newly diagnosed with ADHD during perimenopause - not because they suddenly “developed” it, but because hormonal shifts have unmasked an underlying vulnerability.

The Inflammation Connection

Lower estrogen also means higher inflammation and oxidative stress. This inflammation feeds into the stress system, dampens serotonin and GABA signaling, and contributes to mood instability, brain fog, and fatigue. For more on how metabolic health affects cognition, see Why Brain Fog is a Metabolic Problem.

The Impact: you can’t hyper-produce anymore

Once your internal buffering is compromised, your typical coping modes break down. You find yourself:

• Unable to hyper-produce at your prior pace – you can’t just push through any more.

• Losing joy in multitasking (it now feels chaotic)

• Struggling to “act like a robot” — your emotions, fatigue, and brain fog insist on being present

• Experiencing more irritability, sensitivity, and lower thresholds for frustration

• Cognitive slippage: memory errors, slower recall, mental “blanking”

• Feeling like you’re treading water rather than moving forward

This change in cognitive function and stress resilience can be very disorienting and stressful on its own. When you view it as a biological change rather than a weakness however, it can also be liberating. Because this phase invites you to drop the impossible standards and rediscover your actual needs.

What to do about the Overwhelm

If overwhelm is showing up, it’s time to listen, and act strategically. Here are some tips:

Step 1: Put yourself first - unapologetically.

Your nervous system is asking for recovery. That might mean protecting 30 minutes of solitude each day, saying no more often, or letting someone else handle dinner. Make rest, creativity, or deep connection non-negotiables.

Step 2: Support your hormones and nervous system.

Work with a clinician who understands perimenopause. Assess your hormones (estradiol, progesterone, thyroid, cortisol). Targeted nutrition, adaptogens, or hormone therapy may help re-stabilize your system.

Step 3: Rebuild your stress resilience.

Movement, mindfulness, breathing, sleep optimization, and social connection are not luxuries – they are requirements for your nervous system, and tools you will need to use consistently.

Exercise support: Next Level Health Program

Step 4: Redefine success.

This stage isn’t about hyper-productivity, it’s about alignment. Start asking: What do I need to feel whole? What can I let go of? What do I want to create next?

The Reframe: Overwhelm as an Invitation

Here’s the radical reframe: overwhelm is not a sign you’re broken - it’s part of the transition. It’s your body’s way of saying, “The old way of doing life doesn’t fit anymore.” You’re not meant to keep carrying everything on your own.

When you listen, slow down, and honour your needs, you begin the transformation that menopause was always meant to bring: one of finally prioritizing yourself, even when life's demands are present.

What’s Next?

If you’re experiencing overwhelm, irritability, brain fog, or heightened stress during perimenopause, you don’t have to navigate it alone. Working with a practitioner who understands hormonal transitions can help you identify the root causes and create a plan tailored to your body and lifestyle.

A personalized approach may include:

• Hormone testing (estradiol, progesterone, thyroid, cortisol)

• Nutrition and lifestyle strategies to support the nervous system

• Stress resilience techniques, mindfulness, and movement plans

• Targeted supplementation or hormone therapy when appropriate

Take the first step toward reclaiming your calm and resilience today.

Work with me: https://drshawnadarou.com/work-with-me
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Frequently Asked Questions About Overwhelm and Perimenopause

Is overwhelm a normal symptom of perimenopause?

Yes. Overwhelm is a very common but under-recognized symptom. Hormonal fluctuations affect the brain and stress-response systems, reducing emotional buffering and stress tolerance.

Why does stress feel harder to manage during perimenopause?

Declining progesterone and fluctuating estrogen alter GABA signaling, cortisol regulation, and neurotransmitter balance, making the nervous system more reactive.

Can perimenopause cause anxiety and brain fog?

Absolutely. Many women experience new-onset anxiety, cognitive fatigue, memory lapses, and emotional sensitivity during perimenopause due to neuroendocrine changes.

How do I know if my overwhelm is hormonal or just burnout?

If overwhelm persists despite rest, coincides with cycle changes, sleep disruption, mood shifts, or cognitive changes, hormones are likely contributing.

Can hormone therapy help with overwhelm?

For some women, yes. Hormone therapy or targeted nutritional and nervous system support may significantly improve stress tolerance and emotional stability when clinically appropriate.

References

1. Genazzani, A. R., et al. (2018). "Allopregnanolone, the progesterone metabolite, and the menopausal transition." Frontiers in Neuroendocrinology, 49, 114–127.

2. Albert, K., & Newhouse, P. (2019). "Estrogen, stress, and depression: Cognitive and biological interactions." Frontiers in Neuroendocrinology, 54, 100773.

3. Belelli, D., & Lambert, J. J. (2005). "Neurosteroids: Endogenous regulators of the GABA-A receptor." Nature Reviews Neuroscience, 6(7), 565–575.

4. Greendale, G. A., et al. (2024). "Menopause-associated depression: Impact of oxidative stress and inflammation." Biomedicines, 12(1), 184.

5. Gordon, J. L. (2020). "Perimenopause and first-onset mood disorders: A closer look." Focus (Am Psychiatr Publ), 18(4), 373–382.z

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