I've had them and I know many people IRL and on forums who have had them and it sounds like a panic attack or possible onset of bi-polar issues.

I am lucky enough to be in U.S. where an M.D. will prescribe xanax (lorazapam) or valium (diazapam). These work for me and I know people that have gotten help from Klonipin. If the increased dose of that does not work please ask if you can try one of the others.

I know many people in the U.K. that have told me there M.D. or pdoc will not prescirbe these because they are addictive. I have taken one or the other for 20 years and if I were to stop suddenly I would have horrible panic attacks, but other than that I have had no problem with these drugs.