I had an emergency c section, with my first baby just over 3 yrs ago. Had epidural, I’m convinced that made my back worse. Already had problems with my back, but ever since having the epidural I’ve been a whole lot worse with my back. (They did take 4 attempts at the needle going in correct position at time of epidural) I have narrowing in the space between the discs of my spine anyway. Although I’ve had regular physio as well to try help strengthen muscles/back after having baby, the physio hasn’t made any difference. Hope yours gets better over time.
Was it an epidural not a spinal you had? I hope it does get better for you soon back pain is not fun