Audrey
                    
                    
                    
                    
                    
                    
                    
                        
                        
                        We are the same age and I was diagnosed @ 10 years ago. Cannot give you why just some suggestions: for the needed  movement  try a peddeling device under your desk  when you sit to study ( or work for that matter).  In class I shot for isle seats so I could move an not disturb the  row too much.  As for the Dr. Is there a teaching  hospital near you-- if you can get in their system  you may well  find  a team willing to work with you -- the win win is they get  to see the progression of your physical state and you get attention -- down side is you may have to poke a few doctors (new and experienced) to remember you are a person not just a set of ailments. Good luck.