Back in January I had a steroid injection (under fluroscopy x-ray) in the sacriolic joint on the right side. A few weeks ago it started to hurt again. Last week I had a radio frequency ablation in my L3, L4 & L5 on the right side. Ever since the pain in the sacriolic joint is unbearable. I am in more pain now than I was a week ago. On Tuesday I go for a radio frequency ablation on the left L3, L4 & L5. Has this happened to anyone?