Hodgkins Throat 4 Year Old Daughter Has Fever For 5 Days, Vomiting On Day 1&2, Sore Throat & Lethargic Throughout, Any Ideas?

4 year old daughter has fever for 5 days, vomiting on day 1&2, sore throat & lethargic throughout, any ideas? - hodgkins throat

My 4 year old daughter has had fever for 5 days. It goes up and down ... mainly controlled Motrin and Tylenol. Sometimes it seems he is better, then suddenly ... BAM ... We are back to square one. She vomited on days 1, 2 and 4 It is complaning abdominal pain, sore throat and was very lethargic and has not really eaten anything in days. (I maintain hydration.) Also had soft stools. We saw yesterday evening that the doctor told me to wait for one or two days and then participate in your blood work. I am very worried. We have a family of non-Hodgkin's lymphoma. No idea what can cause my little girl so sick? If the fever gets worse I'll just sound the emergency room? Thanks for any help or suggestions. Please only serious answers. Thank you again!