My 8 year old has been sick off and on since May22,2014. It started with strep, two weeks later an ear infection, one week later strep again. She was given three antibiotics during this time. 10 days later she had another fever and tested positive for mono. She also had a sinus infection that took three different antibiotics to get rid of it. She went a month with no fevers or any sickness. She has had fever for 5 days and it is progressively getting higher. She tested negative for strep, flu, active mono, UTI. Her CBC showed monocytes at 18%. Her fever tonight was 104.4 . should we be concerned?