My grandad who's nearly 80 years old, his left leg as been giving him trouble for sum time now, while walking he is unable to Lift his left leg , always drags his foot along, if he stops to take a breather and then takes another step it looks like his left foot is glued to the floor and takes him good few seconds to get it going again. At present hes walking with aid of a walking stick but still unable to lift foot of ground, he's always in pain and is always rubbing his leg while seated or lying down.