>>76754630
Sit on a chair with your back straight and pull yourself down with your arms, the do the same with a curved back.
If it hurts when your back is straight this means its a pinched nerve or a compressed disc, if it hurts when you curve your back this means is a bulging disc because the compression is only in one side.
You might find that you have pain in both.
If the former then core exercises in general will help because your spine is compressed because of the lack of core stability.
If the latter ,core exercises focused in your lower back and spinal erectors will help a lot, this is because the discs are compressed on one side.