Dysautonomia

Dysautonomia is the term given to problems with autonomic body functions.

The autonomic nervous system regulates certain body processes, such as blood pressure and the rate of breathing. This system works automatically (autonomously), without a person’s conscious effort. 

The term dysautonomia covers a range of Issues including problems with temperature regulation, decreased sweating, fast heart rate (tachycardia), low blood pressure, fainting and dizziness, and sluggish digestion and blood circulation.