DS1 is 3.5 and has been unwell for a few days with a very high temperature. I took him to the GP today who ruled out ear/chest/throat/water infection and said it is viral. He fell asleep for a couple of hours this afternoona, then his temperature went down to 37 so I put him to bed as normal. I have just been up and checked on him, he felt hot so I checked his temperature and it is 39.9, he is sleeping soundly but breathing quite fast. I have removed all of his covers but should I wake him/ring the out of hours GP?