POTS / Dysautonomia
POTS / Dysautonomia
POTS, short for postural orthostatic tachycardia syndrome, is a form of dysautonomia, which means it involves dysfunction of the autonomic nervous system. The autonomic nervous system controls many automatic body functions such as heart rate, blood pressure, temperature regulation, digestion, and sweating. When that system is not working properly, a person can experience symptoms that affect many parts of the body and make daily life feel unpredictable and exhausting.
If you or someone you love is living with POTS or dysautonomia, this page is here to offer a simple, supportive overview.
What it is
POTS is a condition in which the heart rate rises abnormally when a person moves from lying down or sitting to standing. It is a type of orthostatic intolerance, which means the body has difficulty adjusting to being upright. Many people with POTS feel much worse when standing still for too long, moving quickly, being in heat, or trying to do too much without enough recovery.
Dysautonomia is a broader term that refers to disorders of the autonomic nervous system. POTS is one kind of dysautonomia, but autonomic dysfunction can also show up in other ways and may overlap with chronic illness, viral illness, connective tissue disorders, or other health problems. Because symptoms can seem unrelated at first, many people spend a long time trying to figure out why their body feels so unstable.
Common symptoms
Common symptoms can include dizziness, lightheadedness, rapid heartbeat, palpitations, fainting or feeling faint, weakness, fatigue, nausea, shakiness, brain fog, shortness of breath, chest discomfort, and trouble tolerating standing upright. Some people also experience digestive symptoms, temperature regulation problems, sweating changes, headaches, blurry vision, sleep issues, and urinary symptoms. Symptoms often flare with heat, dehydration, illness, overexertion, stress, or long periods of standing.
For many people, fatigue and brain fog are just as disruptive as the heart-related symptoms. A person may feel physically weak, mentally slowed down, and unable to do ordinary things without triggering a crash or worsening symptoms.
How it can affect daily life
Living with POTS or dysautonomia can affect almost every part of daily life. Showering, standing in line, cooking, cleaning, walking through a store, attending church, working, or even having a conversation while upright can take far more energy than expected. Many people learn to plan around symptoms, rest often, sit or lie down when needed, and carefully manage how much they do in a day.
The condition can also be emotionally draining. Symptoms are often invisible, inconsistent, and misunderstood, which means a person may look fine while feeling weak, shaky, dizzy, and mentally foggy inside. That can lead to frustration, fear, and the exhausting experience of trying to explain a body that does not cooperate the way others expect.
Common overlaps
Some people with POTS or dysautonomia also experience digestive issues, migraines, chronic fatigue, connective tissue disorders, sleep problems, anxiety, and heat intolerance. Palpitations, presyncope, syncope, exercise intolerance, and cognitive dysfunction are also commonly reported. Because the autonomic nervous system touches so many body functions, symptoms often feel broad, layered, and difficult to describe in one sentence.
This does not mean everyone with POTS or dysautonomia will have the same symptoms or severity, but it helps explain why the condition can feel so disruptive and confusing.
Gentle support
Support looks different for every person, but many people benefit from working with healthcare professionals who understand autonomic dysfunction and from learning which patterns make symptoms worse. Managing hydration, rest, posture changes, heat exposure, and daily pacing can be an important part of living more safely and steadily with these conditions.
If you are living with POTS or dysautonomia, please know that your dizziness, exhaustion, fear, and frustration are real. You deserve support, understanding, and care that takes your symptoms seriously.
Check out the blog I wrote about POTS and dysautonomia for even more information.
Important note
This page is for educational and supportive purposes only and is not medical advice. If you have severe chest pain, fainting, worsening symptoms, shortness of breath, or concerns about your heart rate, blood pressure, or diagnosis, seek medical care and speak with a qualified healthcare professional.