Postural Correction- Sit Tall, Walk Tall, Stand Tall.

Infrequent pain suggest that your back is hurting... May be because of weak core muscles or poor posture.. so U should be diagnosed first....

It might be due to weakness of core muscles and disc problem. U need Physiotherapy for pain relief and strengthening of core muscles. Also avoid weight lifting and forward bending

It could be due to disc prolapse in your back, Manual physiotherapist can push your disc,back to it's normal place, GOOD LUCK

Meet physiotherapist

It is not necessary that the pain you have is only because of your past back problem. You need to find the cause of pain first. Where is it exactly?

10 years is a long time, caused of pain may be postural or biomechanical.Since you had an injection for pain relief so high chances are there , that your back muscles and core stabilisers are weak and they are not able to with stand with the stress. All these kind of issues are reversible in nature in earlier stages but if ignored pain can be permanent.

Since your past history of back pain is 10 yrs backs and later there was no pain. So this present pain might not b related to your old condition. You back muscles and core muscles might b weak so that could be one of the reason for on and off pain in back. Uou need to consult a Physiotherapist. They will assess you and give you appropriate treatment