My DS was breathing rapidly this afternoon, so while he was having his supper I took his temp and it was 103 (39 and a half). He's not sweaty and seems okay in himself (he's asleep now). That just seems hugely high to me. Rang GP out of hours service and they told me to give him some calpol, but to ring 999 if he has a fit. He's just under 1 year old, and is asleep wearing just a vest and with a fan in his room (which is at 27 degrees). Anything else I should be doing. SHould I be very worried?