My 2 yr old son been having low grade fevers everyday for a few weeks but past week he is not eating, sleeping all day long, crying like he is in pain and overall acting very different, less energy, then normal. No other symptoms. No cough, runny nose, diarrhea/constipation, urine looks normal, not tugging on ears, not digging fingers into his mouth or drooling (like he does when he is getting a tooth), no new teeth starting. Took him Dr today and no ear infection. Just overall lethargic plus fevers. What could this be? What should I do? Dr seemed less then concerned and I fought to get blood work, urinalysis/culture, cxr and throat culture today. I m concerned. Not just as a mom, but as a nurse. Please help!!