POTS is one of many issues that fall under Dysautonomia. In other words if you suffer from POTS you have a type of dysautonomia, however, you can have Dysautonomia and not suffer from POTS. (Inappropriate Sinus Tachycardia (and or Bradycardia), Orthrostaic Intolerance etc..) Hope that helps http://justmildlymedicated.blogspot.com/