My ds is 4 years old and has been unwell since yesterday, he has been complaining of a head ache and tummy ache. Yesterday his temp was up tp 40.0 and he started being sick last night, this morning he hasnt even managed to keep calpol down and is sleeping now but i just took his temp and it was 34.0 i thought this is a bit low, yet he is sweating. any ideas?