My father is 68 years old. Lately he has been walking very slowly due to foot pain. He is not able to place his feet on the ground. There is no other physical problem. Recently, his mobility has been greatly hampered and he is barely able to make it to the bathroom. To give a brief medical history, his sugar is normal, sodium is low (fluctuates). He takes medicine for blood pressure, uric acid, thyroid. He is bit prone to kidney infection.