Dysautonomia Youth Network of America, Inc. (DYNA) is a 501(c) (3) non-profit organization dedicated to serving young people diagnosed with childhood dysautonomia conditions including Postural Orthostatic Tachycardia Syndrome (POTS), Neurally Mediated Hypotension (NMH), Neurocardiogenic Syncope (NCS), Vasovagal Syncope, Generalized Dysautonomia, Birth Dysautonomia,