Good Afternoon : My Question Is Been Going On For

Good afternoon : My question is been going on for 4 yrs and getting worse ,my feet are cramping so bad that I have found almost boiling water on them makes them feel better . it gets so bad that I cant walk my feet will turn to (using clock 12 to 6) 3 and the tendon hurts were I am scared to step on it for it might brake Please help me understand what is going on . I am 50 yrs old