Hi, thanks for asking in Healthcare Magic. Your head ache is due to epidural anesthesia. It is a complication of this procedure. It occurs due to reduced cerebro spinal fluid (CSF) pressure due to leakage of CSF while inserting the needle. It is postural. You will have more pain when you lift your head after lying down. It is not permanent. It will be there for few weeks and will go away after that. Your back pain can either be due to the procedure or due to the labor. The softening of pelvic ligaments during pregnancy can result in back pain. Passage of the baby through the birth canal presses upon the nerves causing nerve problems. Epidural anesthesia seldom causes nerve problems. Although depending upon the site of placement of epidural catheter numbness occurs on only one side instead of both sides, nerve injuries are rare. There may be slight tingling or numb feeling for some time. However if weakness in legs persist then you will have to consult your treating Doctor for further evaluation. I hope this is useful to you.