hi doctor hru? i have chronic low back pain for 6 years,6 years before my doctor told me iam suffering from muscular spasm, he prescribed me muscle relaxant.since then iam suffering from low back pain on and off.for the past 2 months my pain became so severe that i cant stand for long time,cant do brisk walking.my MRI report says loss of lumbar lordosis due muscular spasm,there is straighting of spine,other things are normal.my vit d is just 10 and b12 is just 86. please tell me some excercises and also plz tell me can i get my normal posture again after excercise and in about how much duration it will take.? thanks