Re: Shouldn't WBC be elevated if you have an infection?
It could be that all of the infections you are getting are viral or even allergic in nature. I would ask the Dr. 45 days of an antibiotic pretty much means it's not doing anything, docs will give an antibiotic for anything these days their theory is if it's viral it won't turn into some secondary infection.
Ear infections, fluid and pain can be viral or allergic esp if not accompanied with a cold.'
Perhaps make an appt with your dr when you are not sick for a full physical w/blood work and address your concerns with her. When you see your Doc only when you are sick, they don't have time to address all your concerns.
Good luck and I hope you feel better.