hello maria and welcome. your symptoms sound arthritic as i suffer from stiff elbows and fingers..I had rhuematoid check and came back negative but my gp says arthritis are all different so i now need tested for osteoarthritis..my first test was done through blood works so i would advise a check up at your doctor.I too feel tierd alot so worth the trip to give closure and treatment depending on any findings started.
good luck and watch for other replies.