Upper Cervical Instability (UCI) and Migraines: A Guide for the Hypermobile Patient

Guest Blog by Dr. Shreya Wadhawan PT, DPT Encore Performance Physical Therapy

If you live with Ehlers-Danlos Syndrome (hEDS) or Hypermobility Spectrum Disorder (HSD), you are likely no stranger to the “mystery migraine.” You’ve tried the dark rooms, the medications, and the dietary triggers, yet the crushing pain at the base of your skull remains.

Cervical instability and sensory integration can often lead to dizziness. But there is another side to this story: Upper Cervical Instability (UCI) is often the stealth driver behind chronic migraines that traditional neurology misses.

Not All Instability is Created Equal

While many talk about “Cervical Instability,” it is important to distinguish between the lower neck and the upper cervical region.

The lower segments of your spine (C3-C7) rely on intervertebral discs for stability. However, the top two segments, the Atlas (C1) and Axis (C2), are unique. They have no discs. They rely 100% on a complex web of ligaments, specifically the Alar and Transverse ligaments, to keep your skull securely attached to your spine.

In the hypermobile population, these ligaments are often like overstretched rubber bands. When they lose their tension, the vertebrae undergo micro-translation, they slide and shift excessively. This creates the bobblehead sensation where people mention that their head feels like a bowling ball balanced on a toothpick. 

The Neurological “Mixing Bowl” 

So why does a tiny shift in your neck feel like a big migraine behind your eye? The answer lies in how your brain processes these tiny shifts from your body.

Think of your brainstem as a neurological mixing bowl. This is where the signals from your upper neck (C1-C3) and the signals from your face and head all dump into the same lane. When you have Upper Cervical Instability, your neck is constantly sending danger signals because the joints are shifting too much.

In the world of rehab, we call this referred pain. Because all these signals are being stirred together in the same bowl, your brain gets confused. It can’t tell if the alarm is coming from a loose C1-C2 joint or from your temple. To be safe, your brain treats it like a full-blown emergency, triggering the short circuit we know as a migraine: light sensitivity, nausea, and throbbing pain.

Essentially, your migraine is often your brain’s way of trying to protect an unstable neck. 

Red Flags: Is Your Migraine Driven by UCI?

Unlike a standard migraine, UCI-driven symptoms have a specific mechanical signature:

• The Posture Spike: Pain that worsens significantly after sitting upright (at a desk or driving) but improves almost immediately when lying down to take the weight of the head off the joints.
• The Trap Reflex: Chronic, rock-hard tension in your upper traps. If you keep stretching your traps and they keep getting tighter, they aren’t “tight”, they are working overtime to hold your head on because your ligaments can’t.
• Neurological Zaps: Brief electric-like sensations or transient blurred vision when you turn your head.

The PT Solution: Stability Over Stretching

Traditional physical therapy often fails hypermobile patients because it focuses on stretching what feels tight. In UCI, that tightness is your body’s only defense. In rehab, we don’t stretch in this case; we stabilize. We move away from the upper traps, temporarily, to strengthen your deep neck flexors and suboccipitals. These are all muscles that will help support your head and neck. As a hypermobility specialist PT, I transition patients into controlled loading. We move from low-load rehab exercises to functional movements that reinforce a stable neck, teaching you how to lift and move throughout your daily activities.

Dizziness and migraines are two sides of the same hypermobile coin. Whether it’s the vestibular dysfunction Dr. Pang described or the mechanical instability of UCI, the goal remains the same: Building a foundation of stability so you can better manage the signals your brain is sending you. By improving your neck’s stability and retraining your proprioception, you aren’t just treating a headache, you are teaching your nervous system that it is safe to move again.    

About the Author

Dr. Shreya Wadhawan is a physical therapist and strength coach specializing in hypermobility and Ehlers-Danlos Syndrome (hEDS/HSD). As the founder of Encore Performance Physical Therapy ,she offers a specialized hybrid care model (in-person and virtual) serving patients across the Bay Area, California. Her approach moves beyond traditional stretching to help patients build the internal stability and proprioception necessary to manage chronic pain and reclaim their active lives. You can learn more about her specialized care or book a consultation at encoreperf.com.