I Have A Positive ANA-1:80; Is It Possible To Have

I have a positive ANA-1:80; is it possible to have a false positive? I have symptoms of fatigue, very dry feet and hands; mild joint pain; heel pain for one year that was diagnosed as Achilles tendonitis; no treatment has helped so far; I have a immediate family history of thyroid disease on my Mothers side-herself, both of her sisters as well as there daughters; my thyroid panel was normal