Dear sir/ Madam This query is regarding my grandmother and she's now 64 and she used to have knee pains joint pains and common problems that comes with age but from past week she's experiencing new issue that if she stands or walks her right leg starts tingling from hip to toe if she sat or sleep it goes is it we consulted physician M he said nerve weakness but that medication doesn't gave any relief to whom we have to consult and what is the problems please help me out.