My experience with the epidural began to happen with my second child. I am currently pregnant with my fourth and I'm at 18 weeks and it's excruciating. I've had three prior epidurals and here's what's been happening. With my first child I was fine. With my second child I had my right leg lock up when I was walking for weeks afterward and I would have to stop and wait for it to unlock before I moved again. I also had back pain with my second. With my first I had no back...