A Rheumatic disease affects the joints, muscles and connective tissues. Some, like osteoarthritis, are the result of wear and tear. Others, such as rheumatoid arthritis, are immune system problems. Treatment plan will likely include medications, regular exercise, a healthy diet, stress management, and rest. Common Rheumatic disorders are Lyme disease, Systemic lupus Erythematous, Behest’s Disease, Polymyalgia Rheumatics, Rheumatic fever. Lupus erythematous is a name given to a collection of autoimmune diseases in which the human immune system becomes hyperactive and attacks normal, healthy tissues.