Atomoxetine
"I am 32 & have walked around with ADHD for my entire life until a nurse suggested I get screened. My "Doc" told me I was Cyclothymic (Bipolar III) & that I was having panic attacks. I agreed but the symptoms never got better with the prescription I was on. 
I went to have my Echocardiogram & was told I gave Postural Orthostatic Tachycardia Syndrome. Long story short, the benefits of this medicine have shown up in the 7 days that I have taken it. My pulse is lower, I haven't had any "panic attacks" & I'm starting to be able to focus a little better. I can't urinate as well unless I consume more water but I needed more anyway. 
This medicine has made me feel normal for the first time in many many years."