my 11 year old son had a 102.5 fever for 2 days, lessening to 100 with motrin, lower back pain on his spine, headache. Symptoms seem to get better for a few days,but seemed tired, fever came back for a day with a sore ear. Currently he is falling asleep 2 hours earlier than normal and seems to have no energy during the day. This started 6 days ago. He says he is ok, but he doesn't seem himself.