It is like you said. A positive ana alone is not enough to diagnose anything. Some healthy people have a positive ana and never get any autoimmune disease. Your ana simply means that there is something inflammatory going on. Your doctor should run some further labs to check for ra as well as other inflammatory diseases as well as track your symptoms. If you are not seeing a rheumotologist, you should get in to see one. They are qualified to diagnose and treat inflammatory issues.
Ulcerative Colitis (remission)
GERD Reflux taking Zantac
Recently low positive ana. Taking Leflunomide (arava).
Also taking Amitriptyline to prevent migraines.