Insomnia
"About 45 min after I took 1 mg.   I was laying in bed and started shaking uncontrolled, my heart beat would intermediately race, with sweating. I did this for about an hour and a half then my fingers twitched for a while. It did the opposite, And kept me up! My Dr. told me that I had the less common adverse effects and not to take any more Lunesta."