I have not been formally diagnosed with osteoarthritis yet but I suspect that I have it too. I'm only 25 and my knees, ankles, wrists, elbows, and knuckles hurt very bad. When I get in the floor to play with my toddler I can barely get back up and going up the stairs bout kills my knees and ankles. I have had all other symptoms you listed as well except for the mastitis. I emailed the lawyer that had posted on this forum and she never emailed me back either. I'm not sure what kind of action to take as far as a lawsuit goes, but I do feel I am entitled to some compensation for the pain and suffering I have endured for the last year and a half. I am scheduled to have mine removed tomorrow.