Hi, dear I have gone through your question. I can understand your concern. Low WBC count may be due to some viral infection. Low level of ANA should not be worry. You should take treatment of infection only. No need to big worry. Just be relaxed. Hope I have answered your question, if you have any doubts then contact me at bit.ly/Drsanghvihardik, I will be happy to answer you. Thanks for using health care magic. Wish you a very good health.