The pain and stiffness come on quickly, whether from an injury or an unknown cause; you may be experiencing the onset of rheumatoid arthritis, osteoarthritis, or another arthritic condition such as gout.
You notice pain and stiffness in your arms, legs, or back after sitting for short periods or after a night's sleep; you may be developing rheumatoid arthritis, osteoarthritis, or another arthritic condition.
SOURCES: American College of Rheumatology. DePuy Orthapaedics. National Institute of Arthritis and Musculoskeletal and Skin Diseases. Arthritis Foundation. Markkula Center for Applied Ethics, Santa Clara University. Arthritis-forum.net. National Institutes of Health. The Center for Current Research. National Internet Health. Alternative Medicine Foundation.