I have a friend who has been on oxycodone39mg for almost 9 years and drinks hard liquor daily, Lately she has lost about 30 lbs and has had tummy problems, She just had her doctor visit last week and he ordered a lower G,I . done. Now for the past 4 or 5 days her lower legs , from her knees down to her toes has been hurting her really bad! Sometimes to the point of tears, and trying to drive her car ,with a clutch has become too painful. What could this possibly be , or the cause of it?