I have interstitial cystitis in remission but got back the vaginal pain that went with it. A NP asked me if I'd taken it. I said no and asked my neuro/sleep doc about it. He said I'd get nauseated. I'm more concerned with urinary retention because my urethral sphincter goes into spasm with anything drying since I also have Sjogren's syndrome. I had fms but it went into remission.