Hi Your baby has received multiple vaccines. After that she became febrile. and now vomiting. There is high possibility of some infection that lead to sepsis causing vomiting and fever. Check at the injection site to rule out any injection abscess. Are there any other symptoms like cough,loose motion, crying while passing urine, excessive crying, irritability etc. Your baby needs proper evaluation from a pediatrician with some blood investigations like CBC, urine examination, widal, chest x ray to find out focus of infection. and accordingly she needs treatment. Hope this helps you. Do vote if useful.