My mom has pain in her bones. Useless!

Hi , my mother she is (44) she has pain in her bones. first it started in her hand then it moves to her arm then to her shoulder she visit a doctor and he said that could be rheumatic fever but he wasnt sure about that that is why my mom didnt take any kind of rheumatic fever drugs she was afraid because the doctor wasnt sure that is why then she get well and fine after two month nearly this pain comes again but this time so stronger than before and also it is all around her body i mean all her bones hurts her so much like it will be more when she sit long in one position when she moves her hand or her legs it hurt her and also her neck and back and she is sick now she takes Analgesic drugs but it is useless