Nociplastic pain, central sensitisation and the nervous system approach that actually reaches it

Many people who present at The Natural Clinic Cork with chronic pain have already worked their way through the medical system. Their scans have come back normal. Their blood tests have shown nothing remarkable. They have been referred, investigated and discharged more than once. They may have received a diagnosis of fibromyalgia, chronic pelvic pain, IBS, endometriosis, TMJ or chronic back pain, or they may have received no diagnosis at all beyond the suggestion that stress or hormones are likely factors.

What many of them are living with is nociplastic pain, formally recognised as the third category of pain by the International Association for the Study of Pain in 2021, and one of the most significant developments in pain science in recent decades.

What nociplastic pain is and how it differs from other pain categories

Pain has historically been classified in two categories. Nociceptive pain arises from actual or threatened tissue damage. Neuropathic pain arises from damage or disease affecting the nervous system itself. Nociplastic pain, the third category, describes pain arising from altered nociception despite no clear evidence of ongoing tissue damage or nerve injury. It is generated by a central nervous system that has become sensitised, treating ordinary stimuli as dangerous and maintaining pain signals independently of any peripheral input.

Central sensitisation, the underlying mechanism, involves functional changes in the central nervous system that lower the threshold for pain signalling, amplify incoming signals and reduce descending inhibitory control, the brain’s own capacity to dampen pain from below. The result is a nervous system that generates pain in response to light touch, temperature change or movement that should be painless, and that maintains that signal regardless of what is happening in the peripheral tissue.

This mechanism explains presentations that standard clinical assessment cannot fully account for, including pain that is disproportionate to injury, pain that migrates or spreads beyond an original site, pain that reliably worsens with stress or sleep disruption, and pain that persists long after tissue healing should be complete, including tooth or jaw pain following a root canal where the nerve has been removed, widespread post-viral aching and chronic back pain after whiplash that has long since resolved structurally.

Why nociplastic pain disproportionately affects women

A third to over half of people presenting to chronic pain services meet criteria for nociplastic pain, and the majority are women. The conditions clustering under this mechanism, fibromyalgia, IBS, TMJ, chronic pelvic pain, endometriosis, interstitial cystitis and chronic tension headache, all share a pronounced female predominance alongside their shared neurological mechanism.

Research documents that women are significantly more likely to have their pain attributed to psychological or hormonal causes rather than investigated biomedically, more likely to be prescribed sedatives rather than analgesics, and more likely to leave appointments without a diagnosis that matches their experience. This diagnostic pattern has direct neurological consequences. A nervous system that has repeatedly experienced its pain signals being dismissed develops an additional layer of threat response, the anticipation of not being believed, which compounds the existing sensitisation and makes the whole picture harder to address through standard clinical approaches.

In Ireland, fibromyalgia alone is estimated to affect approximately 2 per cent of the population. At the globally recorded female to male ratio of at least six to one, that represents approximately 87,000 women, roughly one in every 28 women in Ireland, living with one nociplastic condition. The full population living with the broader spectrum of nociplastic pain presentations is considerably larger.

What naturopathic treatment addresses at The Natural Clinic Cork

Louise Kane Buckley works as a Naturopath and Biodynamic Craniosacral Therapist at The Natural Clinic Cork, offering extended appointments that allow the full nervous system, hormonal, nutritional and stress physiology picture to be assessed and addressed together. The approach follows the multimodal model recommended in the current pain science research, combining education, pacing, nervous system regulation and individualised care rather than passive physical treatment alone.

Biodynamic craniosacral therapy works with the central nervous system’s threat response, the fascial and dural holding patterns of a body under sustained stress, and the autonomic dysregulation that generates and maintains central sensitisation. Research on craniosacral therapy in chronic pain populations has found significant reductions in pain intensity and disability with effects maintained at follow up. The mechanism is consistent with the predictive processing model of pain: gentle contact through the craniosacral system provides new afferent information to the central nervous system, gradually revising the threat prediction generating the pain signal. When the nervous system receives accurate information that the contact is safe and that the body is not in the danger it has been predicting, the pain signal begins to reduce not because the technique forced it but because the prediction has been updated.

Somatic fascia release works with the structural dimension of central sensitisation. The fascial matrix hosts over 250 million nerve endings and functions as a primary sensory organ of the nervous system, continuously feeding threat and safety information back to the brain. In nociplastic pain, years of bracing and protective fascial tension create holding patterns that maintain the alarm signal from within the tissue itself, independent of peripheral input. Releasing these patterns changes the afferent information going back into the central nervous system and begins to revise the sensitised baseline from the tissue upward.

EFT tapping addresses the cognitive and emotional dimensions of the pain prediction, the learned certainty that pain signals are dangerous, that movement will hurt or that seeking help will lead to dismissal. A systematic review and meta-analysis found EFT produced meaningful reductions in pain with benefits maintained at follow up, and early pilot work on gene expression following EFT found measurable shifts in genes involved in stress regulation and immune function, suggesting it influences the biological terrain of sensitisation rather than only the subjective experience.

Nutritional therapy addresses the cellular terrain that central sensitisation depends on. Magnesium, consistently depleted in chronic pain populations, plays a direct role in NMDA receptor regulation, one of the primary mechanisms of central sensitisation. Anti-inflammatory dietary patterns, blood sugar stability, gut microbiome support and targeted mineral replenishment all reduce the neuroinflammatory load that perpetuates the sensitised state.

Sessions are paced carefully to remain within each client’s window of tolerance at all times. If pain, nausea, dizziness or a sense of having to endure appears, input is reduced or a pause is introduced. Getting the pace and combination right is what determines whether a session reduces the threat load or inadvertently adds to it. Clients leave each session with self-regulation tools to use between appointments, supporting active recovery rather than dependence on treatment.

A helpful response to this kind of work often looks like a calmer evening, easier sleep, less pain interference in the background of daily life and more willingness to move, rather than immediate pain elimination. A flare following a session is information about capacity and dose rather than evidence of treatment failure, and subsequent sessions are adjusted accordingly.

All treatment at The Natural Clinic is designed to work alongside existing medical care, addressing the nervous system terrain that medical management alone cannot reach.

Book an appointment at thenaturalclinic.ie/appointment or contact the clinic directly to find out more.