Call Doctor or . . .
Normal, healthy young kids can throw up from bad food, stomach viruses, etc.
.. A child who looks good after throwing up in the evening may just want to go to bed. A 4 year old who was fine hours earlier should be able to sleep
until morning without eating or drinking, if he throws up after dinner. If a child looks quite sickly or has other worrisome symptoms, a doctor should evaluate at the er.