My six-year-old boy has intermittent fever, stomach pain, and (sometimes) very light colored stools. This has been going on for a couple of weeks. Yesterday, he complained of stomach pain, ate very little, and had fever of 102.4. I gave ibuprofen. Woke up with 102.2, I gave more ibuprofen. He is now normal and hungry, but this seems to be recurring. What should I do? (He has also been diagnosed with anemia in the past - twice -- successfully treated with iron drops -- but now he has that pinched look and very pale lips he had the other two times. Related?)