Milk coming out of nose

Shy

Hey mama's! My baby girl is 9 days old and every so often after I feed her, she'll have milk come out of her nose and mouth. To the point where she cant breathe and is frantically trying to get her breath. The last time it happened was about 3 hours ago and it scared me so bad. I havent been able to put her down since. Does this sound like reflux or she's eating too much/too fast? She's breastfed.