Etiologies to keep in mind, related to her sex
& age, are Hyperthyroidism
, Postural Orthostatic Tachycardia Syndrome, POTS, Mitral Valve Prolapse
, MPV & Joint Hypermobility Syndrome
, JHS, which is associated with both POTS & MVP
. Evaluation for JHS can be provided by an Osteopath, and via criteria provided in the "comments" section below.