Thank you for your query.
Yes it is possible for the vaccines to have side effects for upto 5 to 7days after the shot (depending on the type of
meningitis gites vaccine).
The symptoms are usually mild, when present and could account for the lack of incidence of side effects (as the nurse suggested). This does not rule out the possibility of the shot causing these symptoms.
It is, however, better to have it looked at especially if it worries you and continues for more than 2 days.
Try to keep her head slightly elevated with a pillow. Change is posture (lying down to standing) should be done gradually to avoid sudden pressure changes to the head which cause
headaches.
Dehydration can worsen the symptoms. Hydrate her well after every episode of
vomiting, in addition to her regular intake. Small but frequent meals is advised. Oral rehydration solutions/ Gatorade must me given if her vomiting is prolonged and more than twice a day in large quantities.
Hope this helps. Please get back to us if you have further questions
Wish you both good health