Can you recover from dysautonomia? What your nervous system is actually trying to tell you

If you have been told that dysautonomia has no cure, or that your POTS symptoms are something you will simply have to manage, I want to offer you a different frame, one grounded in how the nervous system actually works.

One of my clients, Katie, developed severe dysautonomia symptoms after a series of stressful events in 2025, including her daughter having an anaphylactic reaction in a car on a mountain road, far from any hospital. Within weeks she was passing out repeatedly, unable to drive, barely sleeping, losing weight she couldn’t afford to lose, and experiencing extremely dark thoughts. Three ER visits gave her one answer: anxiety.

Katie did not have anxiety. She had a dysregulated autonomic nervous system. And those are two very different things.

What is dysautonomia, and why does it matter?

Dysautonomia is a broad term for dysfunction of the autonomic nervous system, the part of your nervous system that runs everything you do not consciously control: your heart rate, your blood pressure, your digestion, your breathing, your temperature regulation, your sleep, and your stress response.

When the autonomic nervous system is working well, it responds to demands and then returns to baseline. You get a fright, your heart rate spikes, and a few minutes later it comes back down. You eat a meal, your digestive system activates, and it does what it needs to do. You go to sleep, your nervous system shifts into a restorative state, and you wake up rested.

When the autonomic nervous system is dysregulated, it loses that flexibility. It can get stuck in a high-alert state, where it keeps firing threat responses even when there is no threat. Or it can swing unpredictably between high activation and collapse. Either way, the consequences ripple across every system in the body because the autonomic nervous system is connected to every system in the body.

POTS, which stands for postural orthostatic tachycardia syndrome, is one of the most recognised forms of dysautonomia. It is characterised by a rapid increase in heart rate when moving from lying down to standing, and it brings with it dizziness, fainting, brain fog, fatigue, and digestive symptoms. Katie developed POTS symptoms as part of her presentation, and when she Googled it, the first thing she found was: there is no cure.

That is not, in my view, the whole story.

“The nervous system underlies every system in your body. If it’s dysregulated, everything downstream is affected.”
— Luanne Hopkinson, Clinical Nutritionist & Nervous System Coach (BSc, GradDipHumNutr, ADipNutrMed)

Dysautonomia is a dysregulated nervous system, not a broken one

The good news is that a nervous system stuck in threat mode is not permanently broken. It has learned to respond in a particular way, and nervous systems that have learned something can learn something different. That is the principle behind neuroplasticity, and it is one of the most hopeful pieces of science I work with. The brain is not a fixed organ. It is a dynamic, adaptable system that rewires itself based on repeated experience and input. A nervous system that has been stuck in a threat state for months or years did not become that way overnight, and it will not shift overnight either, but it can shift, and that shift can be significant.

Katie’s nervous system had been through a cascade of genuinely threatening events in a short period of time: her mother’s cancer diagnosis, a dangerous situation for her husband while swimming, her daughter having a severe anaphylactic reaction in the car on a mountain road far from a hospital, her car being broken into, and then the medication and herbal tea reaction that tipped everything over. Any one of these things would activate a threat response. All of them together, without enough time or safety between them to properly process and recover, left her nervous system stuck in a state of high alert that it could not get out of on its own.

The symptoms that followed, including the racing heart, the dizziness, the fainting, the insomnia, the digestive problems, the inability to exercise, the food reactivity, and the extreme fatigue, were not random. They were the predictable output of an autonomic nervous system running in emergency mode.

How a dysregulated nervous system drives physical symptoms

This is the piece that most conventional medicine misses, and it is the piece that makes sense of everything.

The autonomic nervous system does not just regulate your stress response. It governs almost every system in your body, and when it is stuck in a threat state, all of those systems are affected simultaneously.

It regulates your heart rate and blood pressure, which is why dysautonomia produces palpitations, racing heart, and fainting. It regulates your digestive motility and gut function, which is why a dysregulated nervous system produces constipation, diarrhoea, bloating, and nausea. It regulates your immune response, including your mast cells, which is why nervous system dysregulation can drive histamine reactivity and food sensitivities that seem to make no sense.

It also regulates your sleep, which is why the 3 am waking, the racing thoughts, and the inability to stay asleep are so common. And it regulates your energy systems, which is why the fatigue in these presentations is not ordinary tiredness but a deep, system-level exhaustion that does not respond to rest.

And it regulates your brain and mood, which is why the anxiety, the dark thoughts, and the difficulty concentrating that Katie described are not separate psychological problems layered on top of the physical ones. They are the same problem.

When a doctor looks at someone with Katie’s presentation and says “anxiety,” they are not entirely wrong. There is a dysregulated stress response. What they are missing is that the anxiety is a symptom of the nervous system state, not the cause of it, and treating it as if it were a standalone psychological condition misses the underlying physiology entirely.

Why monitoring symptoms can make dysautonomia worse

One of the things Katie tried before she found a path forward was a biofeedback program through a POTS treatment centre. On paper it made complete sense: her heart rate was all over the place, her blood pressure was unstable, and biofeedback is designed to help people regulate their autonomic responses.

But she told me clearly: it kept her stuck. Because she was monitoring her blood pressure constantly. She was tracking her heart rate constantly. She was hooked up to sensors around the clock. And all of that monitoring kept her in a permanent state of hypervigilance about every symptom she had.

Hypervigilance is the opposite of what a dysregulated nervous system needs.

A nervous system stuck in threat mode needs signals of safety. It needs the brain to receive repeated, credible information that the danger is over, that the body is not broken, and that it is safe to settle. Constant symptom monitoring sends the opposite signal: it tells the nervous system that there is still something to scan for, still something to fear, and that the threat response is still warranted.

This is not an argument against all monitoring, and it is not an argument against biofeedback as a modality. It is an argument for understanding what the nervous system actually needs, and for sequencing support in a way that moves toward safety rather than amplifying vigilance.

The gut-brain connection: why digestion and nervous system health are inseparable

One of the things Katie highlighted in her recovery was the gut-brain connection, and I want to spend a moment on this because it is central to understanding why dysautonomia so often comes with significant digestive symptoms.

The vagus nerve, which is the primary nerve of the parasympathetic nervous system, runs directly between the brain and the gut. When the nervous system is in a threat state, the vagus nerve activity shifts: the body deprioritises digestion (because you do not need to digest food when you are running from a predator) and the gut environment changes accordingly. Motility slows or becomes erratic. The gut lining becomes more permeable. The microbiome composition shifts. And the gut’s own nervous system, which is sometimes called the second brain, begins to send distress signals back up to the brain, which reinforces the threat state.

This is a bidirectional loop: a dysregulated nervous system disrupts gut function, and a disrupted gut reinforces nervous system dysregulation. You cannot fully address one without attending to the other, and this is exactly why my approach combines nervous system work with gut and nutritional support.

Katie came in with significant digestive symptoms alongside her POTS presentation, and she noted that the food intolerances and GI symptoms resolved as her nervous system settled, without a heavy gut protocol, without elimination diets, without anything being killed or removed. Her body had the capacity to restore its own digestive function once the nervous system stopped sending threat signals.

I do often work with clients on microbiome restoration, as after years of restricted diets or chronic illness, SIBO or gut dysbiosis can occur. But as you can see, it’s not always needed.

What actually helped Katie

Katie worked with me through BrainFood, my nervous system and neuroplasticity program, alongside seven one-on-one coaching sessions. We did not do a gut protocol, an elimination diet, or supplement loading. We worked on her nervous system and supported her nutrition gently alongside that.

Her digestive symptoms resolved as her nervous system settled, without removing anything from her diet. Her POTS symptoms, the racing heart, the dizziness, and the fainting cleared entirely. Her sleep and energy returned. And she is now exercising, eating freely, and present for her two daughters in a way she was not able to be at her worst.

Healing was not linear, and she is clear about that. But she got there, and she told me she would have had to quit her job if she hadn’t found this work. It is possible to improve your symptoms; I have done it and so have many of my clients.

If you recognise yourself in Katie’s story

If you have been told it is anxiety when you know something more is going on, if your tests keep coming back normal while your body tells a completely different story, if you have tried multiple treatments and still feel stuck, I want you to know that the nervous system piece is the most commonly missed part of this picture.

It is not the only piece. But for a very large number of people presenting with dysautonomia, POTS, MCAS and the constellation of symptoms that goes with them, it is the piece that changes everything when it is finally addressed.

You can watch Katie’s full recovery story on YouTube.

If you want to understand more about the nervous system approach to holistic healing, my free masterclass covers the five-step method I used myself and now use with clients.

If you are ready to start the work, BrainFood is my self-paced nervous system and neuroplasticity program, and one-on-one coaching sessions are available alongside it for personalised support.

Frequently asked questions

Can dysautonomia be reversed?

In many cases, yes, particularly where the underlying driver is nervous system dysregulation rather than a structural abnormality. Working with the nervous system through neuroplasticity tools, appropriate nutritional support, and addressing the gut-brain connection can produce significant and lasting improvements in autonomic function. Katie’s case is one example of this. Individual outcomes vary and depend on the nature and duration of the presentation, which is why personalised support is important.

Is POTS the same as dysautonomia?

POTS is a form of dysautonomia, but dysautonomia is a broader category that includes a range of conditions involving autonomic nervous system dysfunction. POTS specifically involves an abnormal heart rate increase upon standing. Both sit within the same framework of nervous system dysregulation.

Why does dysautonomia cause digestive symptoms?

Because the autonomic nervous system controls gut motility, the gut lining, and the gut-brain communication pathway via the vagus nerve. When the autonomic nervous system is dysregulated, digestive function is directly affected. This is why dysautonomia so commonly presents alongside IBS-type symptoms, bloating, constipation, diarrhoea, and nausea.

Why does dysautonomia cause insomnia?

Sleep is regulated by the autonomic nervous system. When the nervous system is stuck in a threat state, the shift into the parasympathetic mode required for deep, restorative sleep is disrupted. This can produce difficulty falling asleep, frequent waking, and the 3 am cortisol and adrenaline spikes that are so common in these presentations.

Does nervous system regulation help heart palpitations?

Heart rate regulation is a direct function of the autonomic nervous system, specifically the balance between sympathetic (activating) and parasympathetic (calming) branches. When the nervous system is dysregulated toward a sympathetic dominant state, elevated heart rate, palpitations, and racing heart are common. Supporting autonomic regulation through the nervous system tools I use in BrainFood and in coaching sessions directly addresses this mechanism.

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Note: This post is educational and shares one client’s personal experience with my program. Individual results vary. This content does not constitute medical advice, diagnosis, or treatment. If you are experiencing symptoms of dysautonomia or POTS, please work with a qualified medical practitioner alongside any complementary support.

About Luanne Hopkinson

Luanne Hopkinson (GradDipHumNutr, BSc, ADipNutrMed) is a clinical nutritionist, neuroplasticity coach, and founder of Happy Without Histamine. After navigating her own MCAS and histamine intolerance journey, she now helps women with MCAS and histamine sensitivity stop chasing triggers and start creating real healing.

Through her 5R Histamine Modulation Protocol™, Luanne combines gut microbiome repair with nervous system regulation to help the body feel safe again, so reactions settle, and life expands.

Because healing histamine intolerance isn’t about shrinking your world, it’s about getting back into it.