Thank you for your query,
Your child seems to have esophageal reflux.
But I advise you to give breast feeding exclusively till the age of 6 months.
Reflux is common in newborns and most will get relief from it by 6 months age.
I advise you to do the following:
.Burp after each feed.
.Hold your baby in upright position for 10 to 15 minutes after each feeding.
.Give small feeds for more frequently.
.Lateral position while in lying position but with supervision.
If still reflux is not getting decreased, consult your Pediatrician
for further advise.
Hope I have answered your query.