Needs more history and evaluation… if it increases on bending may be disc problem but we cannot come to conclusions with this history Do an orthopedic consult asap

Is this pain in the back going towards leg? Your information is incomplete. It can be spine disc related pain. Consult ortho. Avoid lifting weights and bending. Get an mri done

The location of your pain is not entirely clear from the description. Pain in the lower left side that worsens with walking and bending can arise from the lower back, hip, sacroiliac joint, abdominal wall, or groin muscles, and sometimes from abdominal or gynecological conditions. A detailed history and physical examination are required to identify the exact cause before recommending treatment.

Might be mild disc bulge. Needs proper examination for right treatment plan.

Get evaluated

Get personal consult with orthopedic specialist for physical and radiological evaluation

Get xray of lumbar spine