DESCRIPTION
The autonomic nervous system (ANS) is responsible for regulating automatic functions of the body such as heart rate, blood pressure, digestion, bladder control, sweating, and others. When this system is not functioning properly, syndromes such as POTS (Postural Orthostatic Tachycardia Syndrome) can result. Major symptoms of POTS include the following:
- Symptoms increase in the upright position and improve when lying down
- Persistent increase in heart rate of 30 beats per minute (40 bpm in persons under 19) within 10 minutes of standing up (blood pressure does not always drop)
- Dizziness, lightheadedness
- Fainting or blackouts
- Headaches and/or migranes
- Brain fog
- Shortness of breath when upright or with light activity
- Shakiness or tremors, often worse in an upright position
- Digestive problems (nausea, abdominal pain, etc.)
- Poor sleep
- Chronic pain
Symptoms are often worsened by triggers such as quick changes of position, dehydration, exercise or lack thereof, food (refined carbs such as sugar and white flour), and others. While the root cause of POTS is unknown, there are associated conditions and diseases that are often seen in persons with POTS. Some of these include autoimmune disorders, diabetes, mast cell disorders, low blood volume, following a time of prolonged bedrest, or following a major stressor such as surgery, pregnancy, major infection or traumatic event.