· Illness may cause high blood glucose levels or low blood glucose levels: Infections with fever often cause high BGLs Gastroenteritis (vomiting and diarrhea) illnesses often cause low blood glucose levels · Travelling and holidays should not be restricted because your child has diabetes · Planning ahead will help prevent any problems and ensure that travel and holidays are safe and enjoyable · See your diabetes doctor and educator before the trip - especially for overseas trips · Changes to timing and routines can be dealt with by planning ahead