Hi I have gone through your complaints.
There is no need to worry about. It can be due to gastric irritation and the vomiting
itself will cause incoherence as there will be increased intracranial tension while during vomiting episode.
If your child doesn't have any loose stools or abdominal pain
then there is no need to worry about it. If any further vomitings, then you need to give Him some anti emetics .
Thank you. Good day. Recover soon.