Thank you for your query.
Something in your dinner has not suited both of you for which vomiting
is occurring. Both of you can have ondansetron
to control vomiting and the heaviness feeling in the chest. Just be on the look out that both of you do not land up having diarrhoea
which is highly likely to occur. Ensure that both of you are adequately hydrated by having clear fluids, lemonade, coconut water, butter milk, etc.
I hope I have answered your query to your satisfaction.
Wishing your son and you an early recovery.
Rajiv K Khandelwal