Yes mine changes a lot. Could be a slight infection. Monitor your temp daily and if u see going above 100.4 go see ur docto.

Forgot to mention wbc are your immune systems first line of defense.

If you are having a lot of disease activity,ie inflammation your wbc count will go up.
If it goes up to high your doc will let you know if further tests are needed.

Okay I wasn't sure and I haven't gotten any word from my rheumatologist haha so I'm glad it's normal.
And infection?
And hmmm I have to find a thermometer O.o