DH is with DD1 in a&e. She was sick in the night but no fever and acting perfectly fine this morning. We went on a playdate this afternoon and she was perfectly fine, then very quickly became glassy eyed and tired. Temp 39. Gave calpol, 15 minutes later temp now 40. Gave neurofen, 30 minutes later temp still 40 and she was asleep. Took her to a&e. She hasn't weed today (just this morning) and said she couldn't twice when she tried. Apparently did a little wee at a&e, then drank loads of juice and only got a dribble. Temp now normal and she's perked up. Any ideas??