POTS (postural orthostatic tachycardia syndrome) and dysautonomia describe conditions where the autonomic nervous system — the part of your body that automatically regulates heart rate, blood pressure, digestion, and temperature — stops working the way it should. If you feel dizzy, lightheaded, or your heart races when you stand up, you may be experiencing a form of dysautonomia. At Beyond Limits Health in Greenville, SC, we take a functional medicine approach that looks beyond the symptoms to understand why the nervous system became dysregulated in the first place.
What Is Dysautonomia, and How Does POTS Fit In?
Dysautonomia is an umbrella term for any disruption of the autonomic nervous system. POTS is one of its more recognized forms, marked by an unusually rapid rise in heart rate after standing. Because the autonomic system touches so many organs, symptoms can vary widely from person to person and often overlap with other conditions.
Commonly reported experiences may include:
- Rapid heartbeat or palpitations when standing
- Lightheadedness, dizziness, or near-fainting
- Persistent fatigue and exercise intolerance
- Brain fog and difficulty concentrating
- Digestive changes, temperature sensitivity, or poor sleep
Why Does POTS Develop in the First Place?
POTS and dysautonomia rarely appear out of nowhere. Research suggests they often follow a triggering event that stresses the body and nervous system. Many people notice symptoms begin after a viral illness, a period of prolonged stress, or another significant physiological strain.
Some of the contributing factors that functional medicine practitioners commonly explore include:
- Post-viral or post-infectious changes to the nervous system
- Chronic inflammation and immune dysregulation
- Gut imbalances that affect the gut-brain connection
- Nutrient depletion, dehydration, or blood volume issues
- Underlying toxin or heavy-metal burden
These are areas to investigate with a qualified practitioner — not self-diagnose — since the right starting point differs for each person.
How Does a Functional Medicine Approach Differ?
Conventional care for dysautonomia often focuses on managing symptoms, which can be helpful and important. A functional medicine approach adds another layer: it asks what is driving the dysregulation and whether those upstream factors can be supported. Rather than treating the racing heart in isolation, the goal is to help the whole system regain stability.
This may involve careful assessment of your history, targeted testing, and a personalized plan that addresses hydration, nutrition, inflammation, and nervous-system support. Some people find that steady, foundational work over time helps their body become more resilient.
What Can You Expect From Root-Cause Care?
Because dysautonomia is complex, progress is usually gradual rather than instant. A thoughtful plan tends to begin with the basics — supporting circulation, replenishing what may be depleted, and calming inflammation — before layering in more individualized strategies. Working with a practitioner who understands the interconnected nature of these systems can make the process less overwhelming.
Every plan should be tailored to you, and no reputable practitioner can guarantee a specific outcome. The aim is to give your nervous system the best possible conditions to recover function.
How Beyond Limits Health Can Help
Because POTS and dysautonomia so often follow viral or post-infectious triggers, our work in this area overlaps closely with our long COVID recovery and post-viral support program, where we focus on the nervous system, inflammation, and energy production together. We take time to understand your unique history before building a personalized, root-cause plan.
To learn more about dysautonomia from an authoritative medical source, the National Institute of Neurological Disorders and Stroke offers a helpful overview. As always, this article is for education only and is not a substitute for care from a qualified practitioner.
Schedule your free evaluation with Beyond Limits Health in Greenville, SC, and let's explore what may be driving your symptoms.
Written by Dr. Jeff LaGree, D.C. with first-hand expertise. AI tools may be used for research and drafting assistance, but all content is reviewed, verified, and published by the author.