question: My daughter says her stomach hurts and is dizzy when she stands up.  She's fine as long as she's lying down but her tummy still hurts.  She's only eaten only 2 pieces of dry toast, 1/2 c broth w/ crackers and water in the past 36 hours.    She threw up 36 hours ago in the middle of the night but hasn't thrown up since in the past 24 hrs.   It seems like it's really her tummy that  hurts and she's sleeping more than usual.