Hello..
According to age back pain is normal.. but if its paining the whole day long,,, there could be weakness in back muscles.. i would suggest u to consult an orthopedic first.. some pain killers n
calcium suppliments..
Go for morning walk 15-20mins,, do hot water formantation,, then apply myolaxin ointment..
Consult nearest physiotherapy center for back strengthening exercises..
Drink 3-4lits of water in 24hrs.. u should be fine..
Thank u