panic disorde
"It's amazing how many symptoms come about because of anxiety: chest pain, chest squeezing, dizziness, light-headed feelings, feeling faint, sweating, nausea, heart palpitations. I could go on. Xanax is practically a miracle drug. It stops most of these symptoms cold after about 45 minutes of taking it. You feel better, and you look back at one hour ago, and you're bewildered that stress and anxiety caused you to feel so badly."