so sorry your daughter is going through this. it must be miserable for her. i would suggest taking her to her pediatrician to rule out any physical cause for this vomiting. if she checks out ok physically then i would question whether she may be suffering from anxiety. anxiety in school children is not uncommon. and anxiety about going to school definitely could cause a child to vomit. you might talk with your daughter to see if she's being bullied or if she is nervous about school. if anxiety is the problem just talking may give her relief. you also might talk to the school counselor. this can be a good starting point. wishing you and your daughter all the best!
12yr old daughter nuesa and pucks only one time in the morning every morning. after shes pucks she if fine she goes to the bathroom fine eats like a horse and not junk food veggie fruits every thing is fine but in the morning that is when it hits her she does eat in the morning before school.