I have sharp pains and my body temperature is 98 to 99 º F. I have pains in the lower back , shoulders , legs and hands. When I sleep I can hardly get up. Externally it shows my body very warm but the thermometer shows a normal temperature.
By your symptoms seem to have a viral or bacterial infection. It is important to be evaluated by a doctor to assess this. The feeling of pain and fever plus it sounds as if he felt weak, are worrying symptoms . Please go to a doctor examine him .