Please approach a Neurosurgeon He or She will Guide you properly If you have any doubts, ask in private consultation

For back pain no need of full body scanning... It may be due to degenerative disorders of bone,multiple myeloma, metastatic prostate cancer considering his age...disc prolapse can also be the cause even though it's rare at his age group...For spine diagnostics, MRI is necessary...Ensure that you maintain an appropriate posture while working or sitting or walking....Take frequent stretch breaks and drink lots of water...Discontinue using pillow while sleeping straight...Do not lift heavy objects, especially after bending down....Eat a healthy wholesome meal which should satisfy your minerals and proteins requirement...take over the counter pain medications.. Consult nearest orthopedic surgeon they will do the needful.