My 10 y ear old daughter has been sick 3x over the past 2 months w/ the same symptoms - sore throat, headache, temp of 100, dizziness, stomach ache. Last time the dr said it was a virus, but put her on amoxcyllin since 2 family members had strep. She tested - for strep. She has missed 8 days of school since the start of the year! What could be going on w/her and waht tests should I ask for?