Its commom after vaccination
No need to worry
Keep a watch on urine output
Baby should pass urine minimum 6-8 times per day
Burp ur baby proper after each and every feed for atleast 10 min or till baby take 4 burp
It will help
If decreased activity, less urine output, fever
Then need consultation with nearest pediatrician.
Next Steps
If confusion then don't hesitate to consult me online.