Dr. Peter Rowe has kindly given permission for his brochure on orthostatic intolerance and its treatment thereof to be posted here: OIinfo2013.
This information should not take the place of your regular medical professional. It could however be beneficial for you and your practitioner to read and discuss to see if treatment modalities described here might be of benefit to you.
(Please note that this is the November 2013 version which is the most current as of 1 April 2014.)
You may also want to check out the easy to print cards on this site to carry with you:
This one is about OI:
This one is about POTS: