What to Do When Your Nervous System Is Stuck on High Alert

Nov 9

Your labs come back normal. The scan is clean. And your body still reacts like something's wrong — pain that flares without a clear trigger, a racing heart on a calm afternoon, a histamine flare that seems to come out of nowhere. You've done the "right" things and your system still won't stand down.

That's not a character flaw, and it's not in your head in the dismissive sense people mean when they say that. It may be in your nervous system — a system that learned, somewhere along the way, to treat ordinary signals as danger.

What brain retraining actually means

Brain retraining is an umbrella term for a handful of related approaches — limbic system retraining, pain reprocessing therapy, and others — built on a simple idea: pain, fatigue, and other physical sensations aren't just a readout of tissue damage. They're also shaped by what your brain has learned to expect. In chronic conditions, the nervous system can get stuck treating safe or ordinary sensations — a muscle twinge, a stomach gurgle, a mildly elevated heart rate — as an active threat, long after any original injury or danger has passed. That threat response then produces more of the very sensations it's reacting to, which confirms the danger, which keeps the alarm running. Think of it as a fire alarm that's not only going off without a fire, but even creating its own smoke!

Brain retraining approaches try to interrupt that feedback loop: not by convincing you the pain isn't real, but by teaching your nervous system that the sensation doesn't always mean danger. Of the approaches under this umbrella, pain reprocessing therapy has the most research behind it.

Why this matters more here

If you're hypermobile, there's some real evidence of widespread, amplified pain sensitivity on testing — not pain that's just localized to specific joints. A study comparing women with hypermobile EDS to matched healthy controls found their pain thresholds were lower everywhere tested, even including sites that didn't reportedly hurt. Some researchers point to that pattern, lower pain thresholds at pain-free sites, as a sign of central sensitization: the nervous system turning up the volume on pain signals generally, not just responding to local tissue problems. The study was small, so it can't tell us whether this pattern is a cause of chronic pain or a consequence of living with it for years — but the researchers called it suggestive enough to warrant more research.

If dysautonomia — including POTS — is part of your picture, nervous system regulation is already part of what's going on, but the mechanics are different from what's being described above. In most people with POTS, the racing heart is a compensatory response to a measurable problem, such as blood pooling in the legs, low blood volume, or blood vessels that aren't getting the signals they should. In a smaller subset, the driving problem is excessive sympathetic nervous system output, which is closer to the kind of threat-miscalibration brain retraining targets. Either way, no trial has tested brain retraining specifically for POTS or dysautonomia, so this connection is more speculative than the pain research above.

Mast cell activation syndrome (MCAS) may belong in this picture, too. Mast cells sit physically close to nerve endings throughout the body, and researchers studying this relationship describe it as bidirectional: the autonomic nervous system can trigger mast cells to release inflammatory mediators, and mast cell activity can in turn affect autonomic function. This is a proposed mechanism, not an established one, but to the extent MCAS involves this kind of nervous-system crosstalk, it's a plausible reason nervous-system-focused work might matter here, also.

What the evidence says

The strongest evidence for brain retraining comes from chronic back pain. A randomized trial out of the University of Colorado Boulder tested a structured program — one evaluation session plus eight hour-long therapy sessions over four weeks — that taught patients to reinterpret their back pain as a brain-generated, non-dangerous signal rather than a sign of ongoing damage. Two-thirds of participants were pain-free or nearly pain-free afterward, compared with one-fifth getting an open-label placebo and one-tenth getting usual care, and most of that benefit was still there a year later. Brain scans taken before and after showed the treatment changed how participants' brains processed pain signals, not just how they talked about them. A follow-up five years out still found over half of the original pain retraining group pain-free or nearly pain-free, compared with about a quarter of the placebo group and a third of usual care — though the groups were small. More good news: the researchers have said a larger, more rigorous confirmatory trial is already underway to address some design limitations in the original study.

That trial doesn't tell us this works the same way for hypermobility, POTS, or MCAS — it was tested in people with chronic back pain and no clear ongoing tissue damage, treated by therapists trained specifically in this model. The brain-retraining field is also uneven: some programs, like Curable, are explicitly built around pain-reprocessing science; others were built by patients out of their own recovery experience rather than by clinicians. This is worth knowing going in, so you can choose with your eyes open rather than assuming every program in this space has the same level of evidence behind it.

Where hypnotherapy fits in

Hypnotherapy is one tool within the brain retraining toolkit that has its own, separate evidence base worth knowing about.

For pain itself, hypnotherapy looks like a modest, low-risk option. The largest current review — 57 trials, nearly 10,000 participants — found a small reduction in pain comparable to other psychological interventions. A smaller 2022 meta-analysis focused on specific pain conditions — chronic back pain, osteoarthritis, multiple sclerosis, nerve pain, and spinal cord injury pain — found a similar moderate effect, with meaningfully better results from programs running eight or more sessions (significant) than from shorter ones (not significant). (For more on the research behind hypnotherapy and pain specifically, see Can Hypnotherapy Help With Chronic Pain? and Is Hypnotherapy Legit? Unraveling the Science Behind Brain Changes.) In fibromyalgia, a 2017 review pooling 7 trials found a real but modest edge: about 18 more people per 100 got meaningful pain relief compared with controls, plus a reduction in psychological distress — described by the researchers as "holding promise" within a broader treatment plan rather than as a standalone fix.

For PTSD, a meta-analysis found a large effect of hypnosis-based treatment on symptoms, with the benefit holding up — if anything growing — at a few weeks' follow-up. That's a meaningful signal, but it rests on a small base of just six controlled experiments. Guidelines don't name hypnotherapy as a frontline PTSD treatment; the therapies with that status are specific trauma-focused approaches — prolonged exposure, cognitive processing therapy, and EMDR.

For stress and anxiety more broadly, a meta-analysis of 17 controlled trials found a medium-to-large effect of hypnosis on anxiety symptoms, with hypnosis working best when combined with other psychological approaches rather than used alone.

As to whether these findings translate to the hypermobility triad, the honest answer is that there's no study testing hypnotherapy in EDS, MCAS, or POTS. The closest available evidence is a small study of hypnotherapy in mastocytosis — a related but distinct mast cell condition — where two individualized sessions led to meaningful improvements in abdominal pain, fatigue, and overall symptom burden for many participants, though not for others, and with no control group to rule out other explanations. If MCAS genuinely involves the kind of nervous-system dysregulation described above, this may be a reasonable treatment to try but isn't currently considered first-line.

Getting started

The lowest-friction starting point is a free, self-guided recording or app you can try tonight — something built on this kind of pain-reprocessing science. If it resonates, a trained hypnotherapist or a clinician who works in pain reprocessing can take it further, especially if trauma is part of what's keeping your system on alert.

This isn't a substitute for ruling out new or changing physical causes of your symptoms, and it isn't the right starting point if you're currently experiencing dissociation, psychosis, or an unprocessed trauma history that needs a trained clinician's support first. And if MCAS is part of your picture, this kind of nervous-system work isn't a substitute for mast-cell-directed treatment — trigger avoidance, antihistamines, mast-cell stabilizers, and, for anyone with a history of anaphylaxis, carrying epinephrine. It's a possible complement, not a replacement.

Go deeper

If any of this resonates, here's a short guide to where people in this community have gone next with brain retraining and nervous system work. Download the free Brain Retraining resource guide to see the specific programs and starting points people have found useful.

Get the free guide

The bigger picture

The BENDY Method is a 12-week habit-based course for perimenopause and menopause in bodies with hEDS, HSD, MCAS, POTS, dysautonomia, and related presentations. Join the waitlist to be first to know when enrollment opens.

Trusted Resources