My 12yr old ds has been off school all week with this. He started to feel ill Sunday night and has been on antibiotics since Tuesday. I thought he would feel a lot better by now and the dr said he may be able to go back to school today. However he has hardly got out of bed all week and has barely eaten anything. He has been on his xbox for a few hours and chatted to his mates online and seems ok, then just flakes out. I thought he would def be at school Monday and am now not so sure. Does it normally take this long to recover? He has had quite a few days off recently with various things and I am worried how much school he is missing. He has now been asleep in bed since 3 this afternoon.