I Had An Epidural Injection Today In My Lower Spine

I had an epidural injection today in my lower spine for low back pain that radiates down my hip, leg and into my calf and foot on the right side. I have overall low back pain in both sides. Since the injection I have experienced greater than usual pain today in all those areas. Tylenol doesn't break the pain. Stretching helped a bit, but it still is way more painful than usual. Is this normal?