Lower back pain till feet, can't turn

Mymom has severe back pain since few months, Rhemotalogist was treating her for high uric acid, nd it's come normal.But back pain was reducing nd coming again,he suggestd MRI Hip & spine.Report he explained as nerve compression nd visit neuro.In Andhra neuro doctor said nerve compressed nd Gav medicine ,saying 3 months Tim to recover,if not surgery.Here Bnglore neuro doctor seeing MRI Said nothing such major,nd told for hydroxyvitmin D,CPK Creatine,vitamin B12 & Bone mineral densitometry.Aftr reports he said today,reports says severe osteoporosis. He gave calcium tablets,ostospray &some injection shud be given. No clarity whom to believe in after spending so much money,by selling our things.she can't move right to left while sleeping,pain on her lower back till feet, can't walk, feel heavy in lower bck.Naproxen she will have daily due to unbearable pains.plz help🤲whom to meet neuro or ortho or which doctor.I request plz advise what is the reason for her lower back pain.