hi, thank you for providing the brief history of you. as many post partum cases had similar complains in my clinical practice the symptoms you are facing are due to two factors - one a weaker abdominal muscles due to C-Section and also the weaker spine leading to nerve impingement. Correction of the both can be possible by under going the physical therapy. With physical therapy you can strengthen your core and spinal muscles along with back to shape for avoiding any much injured in future. Back ache is a common issue in females with post partum. so physical therapy is the choice we recommend for out patients. Regards Jay Indravadan Patel