From your history it seems that you might be having osteoartheritis changes in your spinal vertebrae and hip joint giving you this problem.
Due to nerve irritation
or pressure on nerves passing through vertebrae might give pain electric shock
like pain and dull backache.
Go for x-ray lumbo-sacral region and hip joint.
Consult orthopedic surgeon and get examined.
Having chances of osteoporosis
or osteomalcaia are there.Physiotherapy
will help a lot.
Take Calcium and vitamin A and D supplements.
Ok and take care.