My daughter developed a fever this morning shortly after waking. She has maintained this fever throughtout the day, ranging from 99.9 when first taken, and 102.2 at 6pm. She has also complained about a headache all day, and once her eyes, and nostril burned. As if they were dry, which could have been from fatigue . Then also yesterday, and today, she had abnormal stool , diahrria. Does this sound like something serious?