Symptoms & Types Learn about the symptoms of RA. Find out more about RA complications -- including heart disease, and learn when to call your doctor. Symptoms Learn all about the signs and symptoms of RA, from joint pain and stiffness to fatigue and fever. Rheumatoid nodules are firm, flesh-colored lumps that grow under the skin. The nodules grow close to the affected joints. Rheumatoid nodules can be as large as a walnut or as small as a pea. How well are you managing your rheumatoid arthritis? Types Wondering if you might have RA or OA?