DD is 4.5 and has been fine, no bugs, colds or anything. On Thursday she vomited in her sleep, I tried to wake her and couldn't eventually woke her and she was insistent she hadn't been sick, after the bath she was chirpy and perky like nothing had happened, excited to be awake in the night. Fine Friday, Saturday and suddenly on Sunday she said 'I am hot', went pale, was sick then instantly was fine, ate supper, bath and bed. Monday morning was perkier than every. Today she went to school, according to her teacher she had her best day since starting. She had a snack and drink and then post supper she was hot, vomited and was back to perky again.
No other signs of being ill but has had a constant achey belly for months.
Any ideas.