A 28 year old female patient presents to your office with a chief complaint of pain in her hands. She states that the pain began months ago and has just steadily gotten worse. She states it hurts so bad she is having difficulty straightening out her fingers, they keep wanting to go to the side. She stated the pain all began right after she was pretty sick and she thought she may have slept on her hands wrong or something but the pain has not gone away and she is starting to feel pain in her knees also. What disease best fits the symptoms of this patient and what test would you use to confirm your diagnosis?