Have you been seen by a rhuematologist? You definitely have some symptoms of Lupus but there is a whole gammit of autoimmune diseases that can cause many different symptoms and they vary from person to person. ANA is only one test that better helps define if you have any autoimmune conditions. How long have you had these symptoms and what medications are you currently taking besides prednisone?
Hugs and Angels,
DX - sle and carpal tunnel syndrome
RX - plaquenil, prednisone, etolodac, folic acid, lisiniprol, hormones and lots of vitamins