By Susanne Rimm Many symptoms experienced by people living with POTS and other dysautonomias are related to a miscommunication within the Autonomic Nervous System) (ANS) between the sympathetic and the parasympathetic systems. The ANS controls the pressure inside our blood vessels.  This complicated process involves many aspects of anatomy ( heart and vasculature ), hormones, chemicals, and nerves.  Efficient circulation is necessary to provide the body systems with adequate oxygen and