Has anyone has terrifying side effects when coming off pregabalin. I couldn't do anything, I felt I couldn't function as a human being, couldn't stand being cold or hot, was continually sweating. The only slightly better time few hours when the anxiety had marginally gone was at night when I could lie in the dark after taking some Valium. But then I dreaded waking up. I am petrified of the day they might take it off the market as I knew when it happened I would never leave the house again, now I know it was so terrifying I wouldn't be able to go on.