Hy I advice start some stretching and strengthening exercises in back with some physiotherapy treatment like I.f.t and u.s.t. if pain is not radiating in legs.
Next Steps
u consult a physio and a spinal surgeon for proper assessment and diagnosis of case. I advised a lumbo sacrum m.r.i.
Health Tips
avoid forward bending and weight lifting and soft mattress. and use lumbo sacrum belt during long standing and walking.