I was taking klonopin for over 14yrs, in 2008 I started having heart palpatations went to the dr. found out heart trouble was benign I weened off of the benzos not knowing it was a problem went on prozac, and also found out I had sleep apnea, I thought that was the answer to the heart palpatations because I had them no more. I recently moved, my panic attacks came back, I went to the Dr. he put me back on a small amount of klonopin before bed time the heart palpatations came back they only lasted throughout the day though. I went back to the Dr. he changed my script to Temazepam, well the heart palpatations came back the very next day. Has anyone heard of anything like this? What can I take now???