My 4-week-old eats every 2-3 hours, and starting about 15 minutes after she's done, she dribbles milk every few minutes until she falls asleep. My son used to spit up with a burp, all at once, so this is new to me. She is also generally fussy and gets the hiccups literally 15 times a day. Is reflux likely, or is this normal-baby stuff?