Which patient presenting with low back pain would be the most concerning? Question 5 options: 1) A 25 y/o male with non-radiating low back pain after shoveling snow. 2) A 38 y/o female with pain to her lumbar area along with urinary frequency, urgency and burning. 3) A 19 y/o gymnast who states while tumbling “twisted funny” and now has non-radiating lower back pain 4) A 52 y/o male with low back pain, unexplained weight loss and has pain worse at night.