My 6 Yr Old Daughter Has Been So Sick Since

My 6 yr old daughter has been so sick since August 2015. She had a positive mono spot in Aug and since has had everything you can imagine: Tonsillitis, Strep x3, sinus infections x2, pink eye, stomach flu, type A flu. She only had 1 antibiotic in her life until this. Her whole personality has changed, she's become very withdrawn and tired. She was always my kid that didn't sleep and now she sleeps all the time. Finally made doc run cbc, WBC 1.9, neutrophils 1.0, lymphocytes .7, monocytoes .2 eosinophils 0 and basophils 0. A week later WBC 2.6 neutrophils .7, lymphocytoes 1.5, monocytes .4, eosinophils 0 and basophils .1. Her platelets were also low 134. MCHC 34.7 and MPV 11.3. Ruled out cancer have an appointment with hematology next week. I just want my happy and healthy daughter back. She often complains with stomach aches and random pains throughout her body. Any suggestions are greatly appreciated.