My daughter (9) was sick this morning. We had a very early morning, earlier than our usual week day routine, she got up, and ten minutes later threw up. She said she felt better afterwards and has been fine all day and not sick again since this morning (06:30amish) and it’s now 18:00pm. Could she have just been over tired or a change in routine that could have made her sick? Usually with a bug, she’s poorly for the full 24hrs. She hasn’t really eaten much, but seems fine within herself?