Fussiness at breast and vomiting

JulesDiane

DD is 5 weeks old. 3 nights in a row DD has vomited while feeding she vomited several times last week too. When this happens, she fusses and cries at the breast constantly pulling off and relatching. I have been able to successfully burp her, but that doesn't seem to resolve anything. Even though I think she has had plenty, she continues to cry and want to feed and continue to fuss at the breast. Then while feeding she vomits all over me. And since she puked everything up she wants to feed again. Tonight she is feeding again after vomiting, but is no longer fussing. The fussiness and vomiting only seems to happen at night. At feedings during the day she does not fuss. I wonder if I am not burping her enough or maybe there is a reflux issue? Any other thoughts? Thanks!