Chronic Pain and Fibromyalgia

09/09/2026

“Chronic pain in EDS is not ‘just in your head.’
But the truth is more complex than people think.” 🧠🦴

You’re in pain.
Your scans are normal.
Your tests are normal.
Your joints “look fine.”

So people say it’s anxiety. Or stress. Or “just how you perceive pain.”
But here’s what the clinical research actually shows.

Here is the mechanism (this is where it gets real):

1. Your joints aren’t stable ⚙️
Even when nothing “looks wrong,” EDS connective tissue doesn’t hold joints the same way.
Joints shift slightly, move beyond their normal range, and create repeated small strains.
This is called micro-trauma—tiny, repeated physical stress your body doesn’t fully recover from. Over time, that keeps pain signals constantly active.
(Note: This mechanism is moderately supported, but mostly studied in hEDS-dominant groups).

2. Your muscles are working overtime 🏗️
Just to hold you together. When ligaments don’t stabilize properly, your muscles have to step in. They stay partially “on” all day—constantly correcting, stabilizing, and bracing.
That means higher energy use, faster fatigue, and ongoing muscle pain.
(Note: This has objective EMG evidence, but studies are small and mostly hEDS/HSD).

3. Your nervous system changes how pain is processed 🔋
This is the part people misunderstand the most. Pain in EDS is not just from injury; it’s also how the nervous system's software processes signals.
Studies show reduced pain inhibition and increased pain amplification (“wind-up”). This is called central sensitization. Meaning your pain system is physically more reactive, not imaginary.
(Note: Moderately supported in hEDS, with emerging evidence in cEDS).

4. There can be real nerve damage that standard tests miss ⚡
Some studies report small-fiber neuropathy in EDS. These are the tiny nerve fibers responsible for pain, temperature, and autonomic function.
Here’s the key: Standard nerve tests can be completely normal, while these microscopic fibers are still damaged.
(Note: Strongly supported in hEDS, but limited in other subtypes).

So why do tests come back “normal”?
Most standard tests look for large structural damage or major nerve issues. But EDS pain often comes from micro-trauma, small nerve fibers, and functional nervous system changes—things standard tests simply weren’t designed to detect.

⚠️ Important Medical Honesty:
Most of this mechanistic pain research is based on hEDS / HSD populations. For many of the 12 rarer EDS subtypes, there is little to no direct mechanistic research on pain. This is not one unified pain model for all EDS types, but rather the best explanation based on the currently available data.

The Takeaway:
Your pain is not “just in your head.” But it also doesn’t always show up in ways the medical system expects. And that gap—between what you feel and what medicine can easily measure—is where a lot of people get dismissed.

📌 Save this post for the next time someone tells you your pain isn’t real because your X-ray was clear.

👇 Let’s validate each other: What does your pain actually feel like on your worst days?

(Disclaimer: I am an educational content creator () and patient advocate, not a medical professional. I explain complex research simply to educate and raise awareness. This is not medical advice.)

17/08/2026

04/06/2026

Your eyes are made largely of collagen. So when your collagen doesn't behave the way it should, your eyes feel it.

Eye problems in EDS get mentioned occasionally, but rarely broken down by subtype. That's the gap this post is trying to close. Because what's happening in your eyes depends on the type you have, and in some subtypes, it requires serious specialist care.

A 2022 comprehensive review by Asanad et al. in Frontiers in Medicine confirmed that ocular manifestations vary greatly between EDS subtypes and any collagenous structure of the eye can be affected. Full citation in comments. This is the overview. Your subtype has more detail behind it than one post can hold.

What crosses most subtypes

Dry eyes, myopia, and keratoconus occur across multiple EDS types and are worth naming up front because they're frequently missed.

In EDS, scleral collagen changes can reduce the structural resistance of the eye wall, allowing the eyeball to elongate from front to back. This raises the risk of near-sightedness, retinal tears, and retinal detachment. Separately, changes to the vitreous gel inside the eye may also contribute to retinal detachment risk through a different mechanism. Blue sclera appears particularly in cEDS and kEDS/BCS rather than universally.

If you've been shortsighted since childhood and nobody's connected it to your connective tissue, that conversation is worth having.

hEDS and HSD

Dry eye and myopia are the most commonly documented ocular findings here. For some people, untreated dry eye can progress to corneal abrasions or erosions, and in a population with already-compromised connective tissue, that's worth monitoring proactively rather than waiting for symptoms to worsen.

cEDS

Cohort studies have documented drooping eyelids, epicanthal folds, blue sclera, dry eyes, and abnormally slanted eyelid openings in classical EDS. In children, drooping eyelids or epicanthal folds can contribute to amblyopia and strabismus. Both conditions are far more treatable when caught early in childhood, so waiting for a routine check is not the right call here. If your child has cEDS and any of these features are present, ask for paediatric ophthalmology review now.

kEDS (kyphoscoliotic)

Significant ocular risk. Progressive myopia, retinal detachment, and globe fragility are documented features. kEDS has considerable clinical overlap with brittle cornea syndrome, and distinguishing between them requires specialist assessment.

Brittle Cornea Syndrome

One of the 13 recognised subtypes and the most serious ocular picture in the group. Features include extreme corneal thinning, high myopia, blue sclera, progressive keratoconus or keratoglobus, and retinal detachment. Without appropriate ophthalmological management, corneal rupture carries a serious risk of permanent vision loss. Management centres on preventing rupture through protective polycarbonate spectacles, regular corneal monitoring, and assessment for skeletal complications. If you have BCS, ophthalmology is not optional. It is a core part of your care.

vEDS

The eye risk here is vascular rather than structural. Collagen mutations in vascular EDS can cause arterial complications, including carotid-cavernous fistula and cervical artery dissection, that lead to blurred vision or visual field defects. Any sudden visual change in vEDS is an emergency presentation, not a reason to book a routine appointment.

The rarer subtypes

For musculocontractural, spondylodysplastic, periodontal, cardiac-valvular, myopathic, and arthrochalasia EDS, eye-specific research is limited. Ocular involvement has been reported in case literature, even where large studies don't yet exist. If you have a rarer subtype, an ophthalmology referral at diagnosis is reasonable to request, regardless of whether you currently have symptoms. Asanad et al. (2022) found EDS is associated with increased odds of concurrent ocular conditions, supporting referral broadly across subtypes.

If you have EDS and haven't had an ophthalmology review, it's worth requesting one. Tell your optometrist your subtype. Ask specifically about corneal thickness, the length of your eyeball from front to back, and retinal integrity. Standard eye tests don't always measure what matters here.

Sources in comments.

(Science communicator, not a clinician.)