Yes, I'm curious as to the treatment approaches, as well. And what did help and what did not. Have you had any MRI or xrays done on the back and hip? The pain in the leg...is it a numb, tingling, radiating, burning problem at all? Or just the tightness? Did you have an issue where you felt it may have torn with any of your activities?

Treatment is different for disc issue vs myofascial issue. If you're having myofascial issues, seeing a massage therapist who does good trigger point therapy can make all the difference in the world. Then learning how to self-release with a foam roller and ball can keep you on your feet and able to exercises. Getting any muscle imbalances sorted out can make a huge difference as well. I'd be curious to check out any trigger point issues in your quadratus lumborum (QL), glutes (med and min particularly), piriformis, hamstrings, and hip flexors for good measure. This area can be overlooked in physiotherapy, though usually disc diagnosis and treatment is not.

The xray and MRI would help to determine if you have other issues going on with the spine as well, from narrowing to deterioration, to disk bulge, to fracture, to ruling out cancer.