Joint discomfort is common and usually felt in the hands, feet, hips, knees, or spine. Pain may be constant or it can come and go. Sometimes the joint can feel stiff, achy, or sore. Some patients complain of a burning, throbbing, or “grating” sensation. In addition, the joint may feel stiff in the morning but loosen up and feel better with movement and activity. However, too much activity could make the pain worse.