I was doing so much better w/ my panic disorder which decieded to hit me out of the blue 3 weeks ago after 5 years of semi freedom. I have been on Lexapro for over a year, taking Xanax much more frequently & have seen a therapist 3 times since this started again. I was back to work this week, only taking a half .25 mg Xanax & thought I was almost 'cured'. Went to sleep @ 9pm & woke up @ 10:30 w/ severe panic attack in full swing! I took a Xanax and my husband comforted me until I could go back to sleep. I had every symptom, I was trembling so bad I could barely walk or do any muscle tensing/relaxation techniques. I am so discouraged now :(. I am home from work today...I don't want to continue this cycle of fear! Any advice would be greatly appreciated!