Hi everyone My daughter has been fussy while eating for the last few months but lately it's been worse. She nurses usually for about 2-3 minutes, then pulls herself off and starts getting a little fussy. She roots again and latches for a few seconds and pulls away crying, turning her head away from me, arching her back and kicking & squirming. If I switch sides, she'll eat for a little bit longer and then she'll do the same thing. I keep switching sides for probably 3-5 more minutes till she won't latch on anymore. Whenever she pulls off she usually roots or turns her head from side to side. I used to think she just needed to burp but when I put her over my shoulder she cries even harder. Usually when she does burp it sounds like she spits up in her mouth too. If I give her a binky right after, it sounds like she spits up in her mouth and swallows it again. She does this whole thing 80% of the time, but only does it a few times at night but when she does she cries pretty hard and it's harder to settle her down. She turned 4 months yesterday and had a checkup, she is only 11 lbs. 11ozs which is 10% for weight for her age. At her 2 month checkup she was 10 lbs 6 ozs, 40% for her age. The nurse-practitioner recommended we either pump & feed after feedings or supplement, she said it's probably a low supply issue. I'm not sure it's the case though. After she feeds I still pump 1/2-1 ounce and when she unlatches I can squeeze my breast and milk squirts out. 6-8 wet diapers a day & big dirty diaper every 3-6 days. What do you think...supply issue, reflux, letdown...something else?