Thanks for writing to health care magic.
It is normal for children to not to accept much for few days. You need not worry about that part if the kid is otherwise normal and active.
Regarding loose motions monitor for signs of dehydration
. If there is blood and mucus in the stool we call it as dysentry
and start the child on antibiotics.
should be controlled with antiemetics. If the child continues to vomit intravenous fluids may be required.
Hope this helps.