Hi there, Bursitis typically worsens with activity, and the pain is usually quite localised in the area where it is inflamed. I am thinking more towards either polymyalgia rheumatica, or a nerve impingement. However, nerve impingements will typically improve with rest, not with activity. What you have sounds a bit more like polymyalgia rheumatica. Classically it is felt in the shoulders, but can involve any large muscles. The pain and stiffness is usually worse with prolonged periods of rest. This means that you feel it worse in the early mornings when you wake up, and during your sleep, but improves as you go about your daily activities. You would need to see a rheumatologist to confirm this, because you might need long term follow-up to control the symptoms. It usually responds better to steroids like prednisolone than other normal medication like anti-inflammatories. Hope this helps, and all the best to you. Regards, Dr. Teh