Question: Positive antinuclear antibody test…what should I do?

I am a 43 year old female. I have been having a fever for more than a week now.I have been seeing a doctor and a blood test and urine and blood culture was conducted.Everything was fine except that my antinuclear antibody result was higher than normal.Should i be worried and seek futher treatment since when i looked online it said that a positive antinuclear antibody reading can be a result of a viral infection .So should i wait a few more days and take some rest or should i seek immediate medical attention.

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