Back pain on off for couple of years. Gristle feeling along lumber spine?

I have had back pain on off for couple of years. Gristle feeling along lumber spine. Saw chiro recently….he thinks disc bulge? I get restless legs…tingly feeling in back thigh to feet at times…walking feels heavy. It can feel like my back goes into spasm….I have a sitting job. Shooting and tingly pain in arms at times too. Your thoughts? Got xray yr ago. No MRI though. Just concerned.

Age: 27
Female
Medications: Valium when needed. Multivitamin.
General Information: Hereditary Spherocyctisis. No gallbladder.