It is good awareness of you to approach for help and realising that it might be normal too. I m glad u didn’t panic. Yes. Vomiting 2-3 times a day is quite ok if it happens even after burping as the child doesn’t know when to stop feeding and end up ingesting more milk than required. But what is more important is that does burp the baby after every feed??? Sometimes it takes longer time to get the baby to burp. The cough might be due to the milk regurgitating . That also happens if u don’t burp the baby .
Next Steps
Yellow potti is ok and it will be liquid in nature because it intakes milk.
Health Tips
If the baby is vomiting too often or too much consult me . Let’s work this out . All the best