i have eroding bones and joints, in hands, feet, arms and back. they are sore to touch, one arm is swollen and aches all the time. my left leg goes numb. i can t walk far, my back locks up. i get radiating spams in entire length of back. i am physically tired, have difficulty doing everyday tasks, my hands are so deformed, and worsening all the time, they are so sore. whatever this is, it is in my bones and muscle. blood tests have show no RA factor. can you tell me what you think it is.