anxiety
"After decades of battling post traumatic stress disorder and anxiety, I finally have found a medication that helps to calm the revved feeling I constantly battle.  It is not complete gone, but I feel as if I can breathe again.  The tightness in my chest has reduced and my upper back no longer hurts because I can relax my shoulders.  It is as if someone has loosened their grip on a rubber band!  Best of all, self-help techniques, like relaxation, now work!!  Gabapentin has helped me to feel like I have a fighting chance against anxiety."