my mother is age 72. She is undergo taken for heart tablet since 2000, she is normal BP, ECG and Echo condition and there is no sugar and urea complaint. lastly she was taken angio for heart pain in vijaya hospital, chennai. In this report there is no block in this regard. The Doctor advice to her, you can walk nearly 2 to 3 km and take limited food, but her weight is 75 kg and suddenly now right leg of knee pain heavely and ortho doctor said there is not complaint and weakness only and this knee pain is till not relief, what is the problem and i want suggestion from you sir, kindly.