Hi, I am trying to research RA for my Mother who refuses to admit she may have RA? She is having swelling in her ankles, knees, wrists, and lower back pain is severe when getting up and down and takes a minute to straighten out. Extreme weakness, cronic fatigue, I would describe her symptoms when they first started as flare-ups this has been going on for more than 7 months. Does this sound anything like RA or is it worse Cancer?