Rheumatoid Arthritis

What do you do when your doctor tell you that you might have rheumatoid arthristis? Even the doctor is doubting his own eyes since it is almost impossible for someone who is not even in their 30 to have RA.

My mind went blank for 2 seconds and it went balistic afterwards with all kind of questions. However, everything still came up blank or maybe I'm still in denial phase. I will come out of it, just not at this moment.