First rule out any swelling at vaccination site. If it's normal. Then your child probably having evening colic. This is common at this age. And is physiological. Meet your pediatrician for colic medication. On this platform medications are not allowed to prescribe. Hope your doubts are cleared. Gripe water is not recommended by us. It's an ayurvedic preparation and can be harmful for babies.
Next Steps
Meet your pediatrician to rule out above causes.
Health Tips
Exclusive breastfeeding till 6 months of age.