This is pretty much normal thing. Make sure you do burping following each feed.
If this doesnt help, then start her on Tablet Lanzol 15 mg.
Dissolve that tablet in 15 ml water and give her 3 ml per day for next 15 days, once a day.
Additionally give her Drops Aristozyme 5 drops twice a day for 15 days.
Next Steps
Follow up after 15 days
Health Tips
Hope this helps.
Happy Parenting.