My mother is Suffering from lower back pain since 4-5 years .she feels heavyness while walking .using stairs is a big problem for her .we have consulted many doctors few of them said that muscles are stiffed .one of them said that on an important area in the backbone few muscles are clotted .another one said that the disc is damaged ..we are getting different opinions from everywhere.she doesn't feel the pain while lying .she has thyroid too .her lower back looks so stiffed and kind of curved towards the front ..kindly suggest