Hi - do you run with a slant forward or backward?

It is more likely that you bend forwards in the back too much straining the back of the disc.

If you don't change your movement patterns, it will get worse. These are the types of patients who bend over in the shower one day to pick up the soap and then get stuck there.

Find a good physio who will NOT use machines on you - you need to retrain how you move - that is the primary problem...