neuropathic pain
"Thus is intended as a warning about sudden cessation of long term Lyrica use. I've been taking 75mg twice daily Lyrica for severe pain resulting from crush fractures in my spine. I started to feel a slight benefit from the drug a few weeks after beginning to take it but it wasn't until I started swimming that my long standing pain completely disappeared. 
I never missed a dose until a few days ago: just ran out, had to wait til the next day, effectively missing two doses. I went through an incredibly harrowing experience in that time without the drug...it wasn't psychological: I could almost physically feel the chemistry in my brain and body going totally haywire. It was extremely alarming, nothing can describe how nasty it was."