MS-3367

MS-3367

A 50-year-old patient visited her family physician with complaints of body pain for the past 5 months. She initially attributed it to starting aerobic exercise classes 7 months ago, but the pain has persisted and over-the-counter pain relievers have not helped. The pain is more prominent in her shoulders and lower back, and she also experiences fatigue and difficulty sleeping due to the pain. Her BMI is 28 kg/m2, and she has never smoked. She denies any weight loss or fever episodes. She lives alone and can usually manage her household chores. Her mother, who had rheumatoid arthritis, passed away last year. On examination, the doctor notes tender areas in her neck, elbows, and knees. What is the most likely diagnosis for this patient?