In the last 8 months I have become extremely nervous, anxious and unable to concentratel I can't think clearly. I also have extremely bad nightmares. I take Clonazepam 0.5 MG tablets which works very well to relieve the extreme anxiety. The trouble is that I have to take it every day. There are days when I could use it more than once. I get so nervous that it seems like my head is in a vice. I get the feeling that it is imposible for me to complete the simplest of tasks. It is very hard for me to start a new day. I can see only bad.