panic disorde
"In my late teenage years I started getting panic attacks so incapacitating I would go to the ER because I thought I was about to have a heart attack. I was having heart palpitations, dizziness, nausea, my hands and feet became tingly. These attacks would come on out of nowhere and last up to ten hours. 

when I would go to the ER they said my vitals were fine and that it was all "in my head". 

I found a DR and was prescribed 1 MG to take as needed. I take half when I feel an attack coming on and it stops it. I haven't had a panic attack since I started taking it. It truly has saved my life, I take it maybe 3-5 times a month (3 MG tops a month) and have had 0 bad side effects nor any addictive tendencies."