I had a 4-level lumbar RFA today (L3-5, S1). Procedure went well. However, right afterwards, I had double vision, twitching fingers, nausea, vomiting, balance problems. Has anyone else reacted like this after the procedure? I'm about hours post-procedure and am still feeling queasy. All the other symptoms have subsided. Feedback, please. I'm at a loss for what happened to me. Doctor said it's the first time he's ever seen anyone react this way after an RFA.