<s>[INST] My 5 yr old son was fine all morning then this afyernoon started looking really tired and fell asleep I assumed he was just tired. He woke up about 2 hrs later with a 103.4 temp complaining his forehead hurt and his legs hurt when he tries to walk. Do you think there is any major concern? I had him touch his chin to his chest and he said that there was no pain and insist no tummy aches or pains. [/INST] Hi... appreciate you for testing and making it clear that it is not meningitis (by asking the chin to be touched). I feel that this could be a viral illness and in viral fevers it is quite common to have symptoms like this. Usually rather than fever, what is more important is the activity of the child, in between 2 fever episodes on the same day. If the kid is active and playing around when there is no fever, it is probably viral illness. Once viral fever comes it will there for 4-7 days. There is nor major concern here. Regards -  </s>