Hello Doctor . my sister 36year old . its happend about one month . she has pain in joints then we did a check up a doctor but cant find any result . we test all tests as doctor said but everything is normal . she has suagar but in a limite . now from one month her leg foot & hands like a baloon . she cant move . we change doctor to doctorbbut do not get any improvement . what to do ? what is the cause and what diseas it is exactly? some doctors says its inffection and some says its joint pain but reports are normal . :(