I have a callus looking thing on the outside of my small toe and a knot on the inside between my other toe. I have had these for sometime but, now I am expereincing pain in my foot and knee as well. I can't get up in my foot and leg without severe pain. I have also been expereincing stinging in my foot and leg. I buy shoes often because my feet hurt so bad. I have also been using dividers between my toes to releive the pain and shock but, that does not work anymore. Suggestions please.