Vomiting milk from nose and mouth.

Hi My newborn is 40 days old , pls note Today morning when I fed her - I was lying down position and I didn't burp her as she fell asleep - an hour or so later she vomited milk - maybe 3 teaspoons or so In the afternoon feed, I did burp her. An hour later she again vomited (much lesser quantity maybe 1 teaspoon) of milk Now in the evening - she only fed for 5mins lying down position and fell asleep so again I didn't burp her. An hour later I could see very very little curd like substance coming from her nose. Pls advise and suggest if there is something wrong . I have been suggested that colic aid helps in digestion now I have given her 0.4ml of colic aid and she seems a bit better and not in discomfort as previously observed