anxiety
"I have had chronic anxiety since I was a child that worsened over time. Klonipin gave me back my life. There were times that I could not even get a breath from the time I woke up until the time I went to bed. This obviously turned into panic attacks. I tried SSRI's and SNRI's that are supposedly safer however, they created more anxiety and they are not at all safer. Seratonin can build up and cause a sudden death. So as long as you do not abuse this medication and see a licensed MD it is safe and effective. 

I would like to add that I recently found out that I have an adrenal condition that causes anxiety and being treated for that has reduced many of my symptoms so make sure you have a full work up,many endocrine problems are the origin."