I had the same thing happen with my second c-section. The woman doing the spinal couldn't get it in right and tried three or four times sending ligtening pain through my spine and legs....I nearly screamed ( I would have rather been in full labor)...I kept telling her my spine was messed up and she needed to go up my spine for it to work...after three or four of attempts in the same place I reached back and grabbed her hand....told her if she stabbed me one more time I was going to lose every ounce of my Christian testimony. She told me she couldn't do it again and called in the head of anesthesia. I told him my spine was messed up and he went right up the middle of the spine and popped it in....OH WHAT A RELIEF IT WAS!
I had pain in that spot for two years. It gradually decreased and occured less often until I rarely feel the pain now. With my third child and c-section I made sure the doctor's knew before I went back that they couldn't attempt it in my lower spine and if they didn't feel comfortable doing it higher up, then they would need to make sure a very experienced doctor was on duty.
No problems with the third one. Went smooth as silk. If they can't pop that thing right in, then they need to back off. I hurt for two years. It was not fun and I didn't appreciate being a practice dummy. One try maybe, but not three or four. That was excruitiating.
It will go away...at least it did with me, but it was not right that I had to endure so much and experience pain for so long.