Yes, talk to the doctors and go from there.
This is what happened to me. When I was in my 20's (1989), I had an odd antibody test result and the doctor told me that it could mean a possible connective tissue disease someday, like Lupus. I was healthy so I went home and went on with my life. I forgot about it. In 1998 (age 36), I was diagnosed with ITP. I still felt fine except when counts were low and when I was using treatments, so I did what I had to do as far as ITP and still went on with my life. In 2004 after using Rituxan and having a bad reaction, I began to have odd symptoms such as feeling flu-like, extreme muscle pain and fatigue. My Hemo did an ANA which came back elevated. I went to a Rheumatologist who basically looked at me, said I was fine and sent me out the door. He didn't do any additional blood work, just said that I didn't look sick. I was miserable every single day. I mentioned that to my Hemo who referred me to another Rheumatologist. That doctor did more testing, and I did have some other odd results like an elevated C3 and C4, elevated SED rate, but that still wasn't enough for a diagnosis.
He did monitor me every three to four months and kept doing the blood work. He helped me to manage the symptoms. Every single time I went to his office and he told me that I didn't have Lupus, I was elated. I didn't want it. But then I did a really stupid thing. My daughter was getting married so I had been going tanning. The heat actually helped my muscles and I felt great. But UV rays are known to trigger antibodies in those predisposed to Lupus. Soon after that, I developed horrible joint pain. Six months later, my labs changed and showed an elevated dsDNA and APS antibodies. Those were the clinchers for the diagnosis (2006). All that time I knew something was going on, but was always happy to hear that it wasn't Lupus. Until it was. That diagnosis turned my life upside down and things got steadily worse.
What I'm trying to say is that you can't live with a black cloud hanging over your head. If I had let that abnormal lab result and comment in 1989 bother me, I would have lived with fear for 17 years. Instead, I was just happy raising my three kids and living life. None of us know what is in our future and sometimes illnesses hit out of the blue. You have a heads up here, true, but it still may never happen.
Advice I wish someone had given me: These things are known to trigger Lupus - UV rays, sulfa drugs, stress and alfalfa. Odd list, but avoiding those things may prevent or prolong a diagnosis.