For more information about POTS:
http://www.potsplace.com/
http://www.dynakids.org/
http://www.facebook.com/notes/12-more-pages/relationships-and-dysautonomia/288489759575?ref=mf
http://www.mayoclinic.com/health/orthostatic-hypotension/DS00997
http://www.nymc.edu/fhp/centers/syncope/pots.htm
http://www.ninds.nih.gov/disorders/postural_tachycardia_syndrome/postural_tachycardia_syndrome.htm
http://www.cfids-cab.org/rc/Brooks.pdf