I ended up on my bathroom floor on Father's Day. Cold sweat, room spinning, dry heaving, genuinely wondering if I was dying. Turns out it wasn't a tumor. It was my vagus nerve doing exactly what it's built to do.

Heavy RDLs the day before had already loaded my pelvic floor. Then I chugged a cold smoothie too fast on my way out the door, rushed a hard push on the toilet, and ended up in the fetal position for what felt like 30 minutes. My wife, who's delivered three kids naturally (one of them 10 pounds even), just watched and said, "this is so dramatic."

In this episode:

Why the posterior chain doesn't stop at the glutes: the fascial line running straight into the pelvic floor, and why heavy RDLs can sensitize it before you ever touch internal work
Why 80% of vagal fibers run body-to-brain, upending the "calm signal comes down from the brain" assumption most of us were taught, and why that flips the whole dysafferentation conversation
The jugular foramen, the occipitomastoid suture, and why this junction is prime cranial territory you should be checking on every patient
Polyvagal basics without the jargon: ventral vagal (safety) vs. dorsal vagal (shutdown/freeze), and why forcing a patient out of freeze can backfire
Why the colicky baby, the shut-down teen, and the adult with unexplained GI issues ("hot girl tummy troubles") are all running the same nervous system pattern I was on that floor

This isn't about diagnosing vagal dysfunction. It's about identifying the structural input driving it and fixing what's actually in front of us every day. That's our lane.

Know a doc who still thinks the vagus nerve is just a top-down calm switch? Send them this one.

00:00 Fathers Day Floor Story

00:57 Workout Setup And Smoothie

01:48 Bathroom Perfect Storm

04:41 Why It Happened Physiology

06:43 Vagus Nerve Basics

08:06 Anatomy And Jugular Foramen

09:33 Vasovagal Cascade Explained

11:33 Polyvagal Theory And Freeze

12:52 Trauma Shutdown In Patients

17:24 Clinical Takeaways And Cases

20:18 Cranial Work And Training

21:53 Final Recap And Outro

35 - Hot Girl Tummy Troubles: A Vagus Nerve Case Study

The Cranial Doc | A Chiropractic & Cranial Mastery Show for Pediatric, Family, and Neurologically-based Chiropractors

35 - Hot Girl Tummy Troubles: A Vagus Nerve Case Study