Eye Exercises for POTS, MCAS & Fatigue

When You’re Doing Everything Right and Your Body Still Feels Unsafe

Why eye exercises can help with fatigue, POTS, mold illness, and MCAS.

For the better part of a year, I started almost every morning the same way. I would hum until my chest buzzed, I would splash cold water on my face, I would do the long slow exhales I had read about, and I would sit with my hand on my heart and tell my body it was safe. I did the breathing. I did the meditations. I bought the little device that was supposed to tone my vagus nerve, and I used it the way you use anything when you are desperate and out of options, which is to say religiously.

And I was still dizzy when I stood up. My heart still raced over nothing. My skin still flushed and itched at foods I used to eat without a thought, and my brain still fogged over by mid-afternoon in a way that made me feel like I was watching my own life from three rooms away. By then I had been sleeping in a tent to put more distance between me and the mold, and I had taken to wearing headphones around the house because ordinary sounds, even my own children’s voices, had started to land in my body like something to brace against. I had spent over a decade chasing my health through Lyme treatments and mold detoxes and one more protocol after another, and now I was doing all of the nervous system things too, and a part of me was quietly furious that I was doing everything right and my body still behaved like the house was on fire.

What I didn't realize back then was that I had only been working with half of the system.

Why Vagus Nerve Exercises Alone May Not Be Enough

If you have spent any time in healing spaces, you have probably been told that the vagus nerve runs everything, that if you can just stimulate it enough, the calm will come. And the vagus nerve is extraordinary. It carries so much of our parasympathetic signaling, the part of us tied to rest and digestion and heart rate variability and the felt sense of being safe enough to be still.

But the vagus nerve is mostly speaking the language of calm. It is not the main switch behind the kind of activation that drives chronic inflammation, the racing and the flushing and the bracing. That activation lives much more on the sympathetic side of the nervous system, and the sympathetic branch turns out to be one of the primary ways the brain talks to the immune system. It shapes inflammatory signaling, it influences mast cell behavior, it changes how blood vessels open and close, it shifts the chemistry of stress through the whole body.

So I could hum and breathe and stimulate the vagus nerve for an hour, and I would feel a little softer for a while, and then my body would tip right back into reactivity, because the thing that was stuck was the brain’s ability to modulate its own sympathetic output. The signal of threat kept firing. And no amount of telling my body it was safe from the outside was reaching the part of the brain that was still convinced, deep underneath, that danger was ongoing.

This is what so many of us run into. We breathe, we hum, we meditate, we do everything the wellness world told us to do, and we stay inflamed and dizzy and hyperadrenergic anyway. What so many of us are missing is the brain’s ability to regulate the whole system, including the activation that keeps the inflammation going.

How Eye Exercises Reach the Brain and Nervous System

I remember the first time someone had me do a set of slow eye movements, tracking a point back and forth, then in and out toward my nose, then holding my gaze steady while I gently turned my head. It felt almost silly, this small thing with my eyes when my whole body was in revolt. And then a few minutes in, the floor felt steadier under me, my shoulders dropped on their own, and the low hum of hypervigilance I had carried for so long got quieter. I remember thinking, what on earth do my eyes have to do with any of this.

As it turns out, quite a lot. Moving your eyes with intention is a brain activity, one that asks the cortex and the cerebellum and the vestibular system and the brainstem and several cranial nerves to coordinate all at once. The nerves that move your eyes thread directly through the brainstem and midbrain, and those are the very regions deeply involved in regulating autonomic tone, arousal, heart rate, vagal signaling, and our sense of where we are in space.

So when we do these functional neurology exercises, the saccades and the tracking and the convergence work and the vestibular movements, we are reaching the brain networks that overlap with autonomic control, using the eyes as the most accessible doorway in.

How Eye Exercises May Help With POTS, MCAS, Fatigue, and Brain Fog

When I first understood this, a whole list of my symptoms that had always seemed unrelated started to look like branches of the same root.

The dizziness made sense, because the brain was misreading my orientation in space. The crashing fatigue followed too, since a brain stuck in chronic activation is an exhausting place to live, and the systems that produce energy run poorly when the body believes it is under siege. Even the mast cell reactivity fit, with histamine and vascular instability and that flushing, lightheaded, racing feeling sitting downstream of a nervous system that keeps mobilizing as though there is something to fight. The brain fog, the light sensitivity, the way my whole system would startle at sounds that used to be nothing, all of it traced back to a brain that had lost some of its capacity to filter and to regulate.

So Lyme, mold illness, mast cell activation, POTS and dysautonomia, chronic fatigue, fibromyalgia, the autonomic struggles that ride along with EDS, the brain fog and the dizziness and the hypervigilance, these so often share a common thread underneath the diagnoses, which is a brain caught in too much sympathetic output and not enough regulation. And when we work with eye movements that interact with the brainstem and the cerebellum and the vestibular system, we may be helping the brain recover some of that regulation, which is why people tend to notice calmer body sensations, less dizziness, steadier ground, softer reactivity, and a clearer head.

These exercises are not killing pathogens, and they are not handing the immune system a new set of instructions. What they may do is help the brain better regulate the systems that drive immune and inflammatory responses, so the body has a chance to move out of chronic stress physiology and toward something that feels more like healing.

What EMDR and Brain Research Suggest About Eye Movements

I find it reassuring that this idea is not as fringe as it once felt. EMDR, the eye movement work used widely for trauma, has been studied for the way bilateral eye movements can shift autonomic state, influence heart rate variability, and calm sympathetic activation. EMDR is not the same as the functional neurology work we do, and it tends to create a broader bilateral effect rather than targeting specific networks, but it points at the same underlying truth, which is that eye movements can reach autonomic regulation.

The cerebellum is part of this story too. We used to think of it as the coordination center and little else, and now we understand it contributes to autonomic balance, emotional regulation, sensory integration, and the brain’s predictions about safety, with extensive connections to the very centers that shape sympathetic tone. So exercises that ask the cerebellum to work well may be quietly supporting balance, dizziness, fatigue, and clarity all at once.

Why We Combine Eye Exercises With Vagus Nerve Toning

This is also why, in Primal Trust, we do not throw out the vagus nerve work, we simply stop asking it to do a job it was never built for on its own. When we combine gentle vagal toning and vibration with active eye movements, the brain receives sound and proprioception and motion and visual tracking all together, and this multisensory input seems to engage the autonomic and motor and integration systems at the same time, which may deepen the brain’s capacity to adapt and regulate, giving it more of the full picture it has been missing.

A Simple Eye Exercise You Can Try at Home

Anywhere, anytime. It costs nothing.

  1. Find somewhere soft to sit. Keep your head still and move only your eyes, slowly, from left to right and back again for thirty to sixty seconds. Notice what shifts, if anything.
  2. Then move them up and down, slowly for thirty to sixty seconds, and notice again. That's it. No goal. No straining.

Some people feel a small exhale they didn't know they were holding. Many feel nothing for weeks, then notice their body responding differently to a trigger that used to set them off for days. That is also the work happening.

When to Reach Out for Extra Support

If your symptoms are severe, getting worse, or interfering with daily life, please reach out for support. While this page offers education and a gentle starting point, we are not medical professionals, and eye exercises are not a substitute for medical care. A licensed physician, a functional neurologist, or a trauma-informed practitioner can help you understand what is happening in your body. There is no shame in needing support, and you do not have to figure this out alone.
If you’d like to move through the full functional neurology eye sequences as part of a guided program, they live inside the Primal Trust Membership, woven through our 40-Day Daily Regulate, which is the foundational program many people start with. It’s a daily practice, guided by short videos, designed to slowly rebuild your nervous system’s capacity over six weeks. The door stays open whenever you’re ready.
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