anxiety
"I have taken Xanax for 24 years and it has been a life-saver for me!  When my psychiatrist prescribed it for me, 24 years ago, I was just about at the end of my rope.  I was crying all the time, was hyperventilating, had bouts of my heart fluttering and many other typical "anxiety-related" symptoms. I was at the point that I was afraid I was dying or going crazy. Over the years, my dosage has been adjusted to work with my life at the time, but I have always taken it exactly as prescribed and have never wanted or needed more than was prescribed.  As a matter of fact, I am currently taking 0.5 mg two times per day, but can take as much as 1 mg five times per day."