Hyperadrenergic POTS

My daughter has Hyperadrenergic Postural Orthostatic Tachycardia Syndrome and I am just wondering if anyone else has this form of POTS.  I would like any input as to what helps you with symptoms as she is having a rough time lately.  

We are just so frustrated because she was doing better after starting Cymbalta and birth control pills as the combination seemed to be helping.  She recently had her wisdom teeth removed and also got the flu and that may be in part the reason her symptoms got worse.

ANY suggestions would be most appreciated!  

thank you,
Lynn:)