Postural Orthostatic Tachycardia Syndrome (POTS) is a disorder of the autonomic nervous system characterized by an abnormal increase in heart rate upon standing due to impaired blood return to the heart. It commonly affects younger women, often follows a viral illness, and causes symptoms related to reduced blood flow to the brain.

Common symptoms include:

• Dizziness, lightheadedness, fainting
• Extreme fatigue
• Brain fog (difficulty concentrating)
• Shortness of breath, chest pain
• Nausea, digestive issues
• Headaches, blurred vision
• Pale face, blue hands/feet (acrocyanosis)