Asbestos is naturally occurring mineral which consists of fibers. The asbestos is of great importance due to its resistant to heat, electricity, chemical and fire. That is why it was used in the building material. Its small fibers are inhaled by human which can cause lung cancer. There are also some studies which suspect asbestos as causative factor for autoimmune diseases like rheumatoid arthritis and lupus. So, there is possibility that asbestos has contributed in developing rheumatoid arthritis in you.