How chronic pain rewires the nervous system—and how evidence-based treatment can help you heal
Written by Anna Katherine Black, PhD
Licensed Clinical Psychologist
GI Psychology
Why Does My Pain Feel Like It’s Stuck?
Have you ever wondered why pain continues long after an injury has healed, or why a flare-up seems to last far longer than expected? If you’re living with chronic pain and searching for lasting pain relief, you’re not alone—and the explanation may lie in a lesser-known but powerful process called central sensitization.
Pain isn’t just something that happens in the body. It’s also processed, regulated, and amplified by the brain and nervous system. When this system becomes hypersensitive, it can interpret even gentle or harmless signals—like light touch, digestion, or movement—as painful. This mechanism plays a role in many brain gut disorders and chronic pain conditions.
Understanding central sensitization can be a turning point. It means your pain is real, your experience is valid—and there are effective, evidence-based treatments that can help support pain relief.
What Is Central Sensitization?
Central sensitization refers to changes in how the brain and spinal cord process pain. Normally, your nervous system helps you detect injury or danger. But when it becomes dysregulated—often due to injury, illness, trauma, or long-term inflammation—it begins to “turn up the volume” on pain signals.
Key signs of central sensitization:
- Pain that feels more intense or widespread than expected
- Pain without an obvious cause
- Sensitivity to light, sound, temperature, or touch
- Symptoms that flare with stress, poor sleep, or strong emotions
The NIH explains that central sensitization contributes to conditions like fibromyalgia, chronic fatigue syndrome, chronic migraine, and functional GI disorders like irritable bowel syndrome (IBS) and functional abdominal pain (FAP).
Why Does This Happen?
According to the Mayo Clinic and Cleveland Clinic, central sensitization may occur after:
- Repeated injuries or chronic inflammation
- Medical trauma or prolonged stress
- Nervous system conditions or autoimmune disorders
In a sensitized state, the brain essentially becomes “hypervigilant,” interpreting normal body signals as painful. It’s not psychological—but it is neurologically learned. Fortunately, what’s learned can also be unlearned.
“Pain can become imprinted in the nervous system even after tissue healing is complete.”
— American Psychological Association (APA, 2022)
Evidence-Based Treatments for Central Sensitization
The goal of treatment is to retrain the nervous system—to reduce the brain’s reactivity to pain signals and rebuild a sense of safety in the body. This approach is foundational to long-term pain relief, particularly for people with functional GI disorders and other brain gut disorders.
1. Pain Reprocessing Therapy (PRT)
PRT is a promising approach designed specifically for centralized pain—pain that persists after the body has healed. It helps the brain “unlearn” false danger signals that drive chronic pain.
PRT is particularly effective for:
- Chronic low back pain
- Fibromyalgia
- Functional GI disorders like IBS
- Tension headaches and migraine
2. Cognitive Behavioral Therapy (CBT)
CBT for chronic pain (CBT-CP) remains a gold-standard treatment for supporting pain relief. It helps patients reduce fear-based responses to pain and build confidence in their ability to cope.
3. Clinical Hypnosis
Clinical hypnosis uses focused attention and guided imagery to regulate the autonomic nervous system and reduce pain perception. Research supports its effectiveness for conditions such as IBS, fibromyalgia, and chronic low back pain—especially in the context of functional GI disorders.
What You Can Do Today
Living with chronic pain can feel overwhelming, but meaningful pain relief is possible with the right understanding and support.
Try this today:
- Talk with a provider about whether PRT, CBT-CP, or gut-directed clinical hypnosis may help.
- Name your pain without blame: “This is my nervous system trying to protect me.”
- Practice 3 minutes of diaphragmatic breathing before bed.
Takeaway: You’re Not Alone, and You’re Not Stuck
Central sensitization is real—but it’s not permanent. With evidence-based care, many people experience reduced pain, improved function, and lasting pain relief, including those with functional GI disorders and related brain gut disorders.
At GI Psychology, we specialize in chronic pain that overlaps with GI disorders, trauma, and nervous system dysregulation. We’re here to help you understand your pain—and reclaim your life.
Explore our resources or schedule a free consultation to learn how our team can support you!
References
American Psychological Association. (2022). Understanding chronic pain. https://www.apa.org/news/press/releases/stress/2022/chronic-pain
Cleveland Clinic. (2023). Central sensitization syndrome: What you need to know. https://www.ccjm.org/content/90/4/245
Ehde, D. M., Dillworth, T. M., & Turner, J. A. (2014). Cognitive-behavioral therapy for individuals with chronic pain: Efficacy, innovations, and directions for research. American Psychologist, 69(2), 153–166. https://doi.org/10.1037/a0035747
Jensen, M. P., Adachi, T., & Hakimian, S. (2016). Hypnosis for chronic pain management: A new hope. Current Pain and Headache Reports, 19(10), 1–7. https://doi.org/10.1007/s11916-015-0518-9
Mayo Clinic. (2024). Chronic pain and the brain: Understanding central sensitization. https://www.mayoclinic.org
National Institutes of Health. (2020). Central sensitization: A key to understanding chronic pain. https://painconsortium.nih.gov
Nijs, J., Paul van Wilgen, C., Van Oosterwijck, J., & Clarys, P. (2011). How to explain central sensitization to patients with ‘unexplained’ chronic musculoskeletal pain: Practice guidelines. Manual Therapy, 16(5), 413–418. https://doi.org/10.1016/j.math.2011.04.005