Emmie,
I don't have a diagnosis either and it drives me absolutely crazy!
It is narrowed down to one or more of RA, Lupus, Scleroderma and/or Ankylosing Spondylitis. At other doctor's offices I usually say "undiagnosed autoimmune disease". In my actual paperwork at the rheumy's office the diagnosis is arthralgia (joint pain) and myalgia (muscle pain). Which to me makes it sound like I'm a hypochondriac. Grrrr.....
Hoping you get a diagnosis soon!
Jen