"xanax has been a life saver. i have always had problems feeling a little anxious.  but once i was diagnosed as having a brain tumor at 26, it only made things worse.  my doctor prescribed lexapro, which worked okay, but i didn&#039;t like the way it made me feel, so i stopped taking them on my own.  one particular night about 3 weeks ago, i got so upset that i thought i was having a heart attack.  i was dizzy, chest hurting and pounding, weakness. nobody could find anything medically wrong with me.  i asked the doctor for something for anxiety to which he prescribed xanax 0.25mg every 6 hours and within the 30 minutes of taking it, all my symptoms had diminished.  xanax really saved my life."