<s>[INST] HI, I m 66 and an avid tennis player. Over the last 6 months I ve had twinges in my lower back that cause pain while I m playing and also during the day s normal course of business. I am starting to experience difficulting in walking when I m playing tennis to the point where it s difficult to walk with a normal gait and it s labored. I feel that the walking issue is related to my spine pain. I am an aggressive server. [/INST] Hi.noted history of low back pain with strenuous activities. This may be a muscular strain from your strenuous activities. Nerve compressions must also be ruled-out. It is best if you consult with a doctor, preferably an orthopedic or a spine surgeon, for physical examination and clinical evaluation. Diagnostics (such as MRI) and management will be directed accordingly. Avoidance of strenuous activities that may further aggravate your symptom, pain relief using Celecoxib 200 mg cap 2x daily (AM/PM) after eating as needed for pain, and lukewarm compress over the area may help alleviate the symptom. Hope this helps. Good day!!~ Chat Doctor.  </s>