Hello and Welcome to ‘Ask A Doctor’ service.
I have reviewed your query and here is my advice.
Cashew Broccoli must have caused gastritis hence the vomiting or it is possible that this is beginning of a
Gastroenteritis.
Since you were given the shots for puking in ER you can have an antacid, a PPI like Omeprazole or
Pantoprazole. Do not repeat
Domperidone if it was given. You can repeat the dose after 8 hours of the first dose.
Watch for any pain in abdomen, bloating,
loose stool, fever and weakness as these additional symptoms may need to take clinical evaluation, investigations and appropriate further management.
Take plenty of oral fluids to avoid
dehydration.
If the vomiting does not stop, visit the ER again.
Try to remember if such foods caused problems in past and if so stop such things that cause symptoms. This means such foods do not suit you.
Hope I have answered your query.
Let me know if I can assist you further.