This may sound crazy, but I found another CBC that I had done after the first one in September. This one said that the WBC was 6.8. It seems like my WBC is gradually decreasing. Now I got worried, I'm going to call my doctor tomorrow. The 7.4 WBC was in the beginning of September, the 6.8 at the end of September and the 5.8 in the beginning of November... ugh :(