From 2 months my mother left leg have numbed below knee position and she cannot able to walk right way and lost balance while standing and walking.She cannot put forward it's legs for walking in right direction and  voluntary the path. She is also taking diabetic medicines and sometimes sciatica medicines when she feels unbearable pain in legs. Kindly advice what and where is the problem in body for correct diagnosis. Is it curable for diabetic person? Do we have to consult orthopedic and physiotherapist.