There are other diseases this could be as well as Lupus. Your ANA can be either positive or negative and you may still have Lupus. I would plan on getting a consult from a rheumotologist in the near future.
To get a rheumy who is familiar with these auto-immune issues, I recommend visiting
www.lupus.org and finding your local chapter. Then contact the local chapter to find out what Drs in your area are working with the association. These are the folks who are most up-to-date on advances in these diseases.
Keep us posted!