Uy mama, sorry to hear na sobrang sakit, pero honestly yan talaga ang common side effect after C-section kasi ang positioning during surgery at ang recovery period mismo ay nakakaaffect ng legs at back, a few of us din experienced the same thing, especially if you were on the operating table for a while or if the anesthesia affected your nerve areas. Best to mention it sa OB mo though para ma-check if normal lang or if kailangan ng specific physical therapy, kasi every recovery is different and you deserve to be sure! In the meantime, try gentle stretching, proper posture support with pillows pag natutulog or nakauppo, at rest talaga ang best medicine, but don't hesitate to ask your doctor about pain management options na safe especially if breastfeeding ka.